The only spanner in the works I see is the need for the wedding clothing...unless you can squeeze all the regular clothing into the bottom and have a roll-aboard with a built-in garment bag, and the stuff is lightweight/volume AND doesn't get destroyed by tight packing, you will have to have at least one of the rolling bags checked and carry on a garment bag instead...

-Security leaving PVR is light for non-selectees- but they had a huge security line to get to the International Level on a Sat PM, when a very large number of flights are departing, and it did not move too fast.
They check your id/docs, ran carry-ons through the xray & you walk through the WTMD- BTW a metal zipper and snap AND an underwire bra AND metal buckles on my shoes did not trigger the walk-through...

This is up the stairs, and AFTER you do check-in.

There were an oddly high number of people getting bags searched at check-in before being allowed to give them to the clerks; I do not know what their protocol is for selection, but it was very intense and detailed, and FULLY BY HAND.

Charters generally go out of their own gate, 7 I believe, but I suspect Security is similar to gates 1-6:
Selected pax were pulled to one side by the only staffer for this, all their carry-on items and everything in any pockets or that they were wearing were placed onto a table, and each and every pocket, slot, pouch, corner, etc of bags were hand searched very thoroughly, with every single item pulled out and carefully and closely examined by the staffer before moving on to the next item; after he finished with everything on the table, and before letting the person touch anything, he then wanded them very thoroughly all over and patted pockets, etc as well regardless of any beep or not.

I suspect visitors to high security prisons go through much less hassle to get in!

-Depending on your resort amenities, you could likely lock up jewelry and cameras in a lockbox at the front desk, assuming it is one of the bigger nicer facilities.

As far as wearing nice jewelry, most National women dress up alot and so wearing jewelry is not uncommon- the snatch-type thefts are not likely really, as long as you are careful about not ending up in a dark/run down area after dark with bright baubles on and no one else around for back-up.
Also, drinking alot or appearing visibly intoxicated equals a mark for most of the criminals that frequent PV, so moderation is a good thing...

-Traveling with/using/carrying camera is pretty common since it is a very picture-perfect town and bay.
I wouldn't recommend carrying an obviously very expensive or large camera around loose or leaving it out on a tabletop or something, but just putting it in a non-camera-labeled bag you cannot see the contents of worked just fine for us, and the thing is a new fancy digital at well over $500.
I don't think anyone even noticed it, unless to look and see what he was pointing it at.

Other stuff....
-The buses are not nearly as crazy as many pronounce, with most drivers pretty smooth at the job, and they are about equivilant to a US school bus as regards condition, but with harder seats.
There are signs over the windshield or wedged on it or written on it stating the bus' destination. and you must flag the bus to tell them you want to be picked up.
Getting dropped at your stop can be tricky, as I have yet to figure out WHERE the bell/buzzer is on those buses that have one and many do not. I would tell the driver when you board where you need to be dropped off, and try sitting or standing in the first few rows so you can remind him when you get closer.
Only small change can be made by the drivers, and the fare from-to anywhere in PV is 4p per person.
From PV's SS Terminal to south down HWY 200 to anywhere as far as Boca de Tomatlan is 4.5p per person.
North of PV to Nuevo or Bucerias requires catching one of those marked buses, since they leave the state of Jalisco and enter Nayarit state-
Here is a quote from an endlessly useful website:
"ATM (Autostransportes Medina de Puerto Vallarta) leaves it's terminal at Brazil #1410 (at the south side of the Sports Stadium), every 7 min. to Punta de Mita and every 10 min. to Nuevo Vallarta. See Map. The busses stop across from Plaza Las Glorias (in front of Tarantino's) in front of Sam's and the airport. The Nuevo Vallarta bus goes to all the hotels in Nuevo.
Fares are Bucerías - 9 pesos, Nuevo Vallarta & Valle de Banderas - 10 pesos, Destiladeras Beach - 14 pesos and Punta Mita (El Anclote Beach)- 18 pesos.
They also have service to Sayulita, San Francisco (San Pancho) and Rincón de Guayabitos. "

He also has current and detailed maps of the PV zones that are very helpful in getting oriented, un-losing yourself, and helping the cabbies find a place they are not familiar with if you know what street it is on.

And here is the webaddress:
http://www.vallarta-info.com/puertovallartainsider.html

-Taxis are in flux on rates, as gas prices are climbing down there too and there is some confusion over the edges of some zones, and what to charge for a fair fare:
Rates are usually by zone, with Conchas Chinas one zone or two since it is spread out, South Side/Zona Romantica one zone, North of the River Cuale/Centro one zone, Hotel Zone (basically from the Holiday Inn to before the Maritime Terminal) one zone, the Marina/Airport one zone.
Not sure what the current fare between Centro and Nuevo Vallarta is, but I can bet it is more than 130p one way, as all the other fares have been climbing.

All taxis leaving from the AIrport and from the inside gate at the Maritime Terminal are Federal taxis, and they charge a very high price indeed- you're pretty much out of luck at the airport, but you can walk out the sidewalk to the main road at the Maritime Terminal and flag a taxi for a fraction of the fare.

Currently, it seems around 30p within a zone, and between 10-30p more for each additional zone are the norm.

*ALWAYS ask Cuanto Cuesto (how much) and give them your destination BEFORE entering the cab- if you do not like the rate you can say no or offer a lower amount and see it they say OK. There are usually ALOT of taxis around most destination-type areas, the main roads, and at the hotels themselves. If the desk calls a taxi for you, it should be at the posted rates they display, but still ask before getting in.
*Plan to have within 5 pesos of the fare ready rather than expect change as many do not have the ability to make change for much of anything (if you hand the guy a 100p note for a 30 or even 60p fare they likely will not have change for you, for example).
-*If they stall on your small change just sit and wait in the back seat until they hand it over (this only happens every once in a while- most of the cabbies are nice and honest).

-The summer rains started at least 3 weeks early this week, and the weather has been wonky all year so far- this means the generally daily or every-other-day afternoon lightning/thunderstorms and light to moderate rain that accompanies them may also be on an accelerated schedule during your visit- and the later in the rainy season the heavier the rain, crazier the lightning, and longer it falls some days- October is generally the wildest, right before the season ends.
The advantage to this is that the rains clear out nearly all the day's humidity and it feels GREAT afterwards...
The term gully-washer is very apt for PV, and the really high curbs you see in town and all the cobblestoned streets are there for a reason- and some days they are just not deep enough to contain the water even then!
Rainfall in the mountains that surround PV is much much heavier than in PV, and all the creeks and rivers that flow downhill and empty into the bay at many points can rapidly become raging torrents, often without any rain having fallen at the downhill points to warn you about the coming water...
If you are planning any activities that involve, oh, say, ATV trips, El Eden-like visits, Canopy Tours, or driving/touring into the mountains be aware of this weather and decide accordingly.
Also, the coast road between SouthSIde of PV and Boca de Tomatlan is narrow, twisting, and runs above sea level but literally along the base of the mountains themselves- lots of waterfalls and overflow are normal, and some areas are marked falling-rock zones.

-If you are planning on doing any water tours, avoid Vallarta Adventures if you have other smaller options- I could not believe the crowded conditions on most of their boats, and they have a pretty low level of safety observed during water activities.
One exception is their day in Las Caletas, which was not very crowded and a pleasant experience.

-And one last thing:
If it is at all possible, plan and reserve dinner at Barcelona Tapas at 31 de Octubre & Matamoros in Centro. There are about 70 stairs up from the street, so keep this in mind, and reservations are highly recommended at 222-0510.
This place is a rooftop restaurant serving Spanish dishes to share, with spectacular views of the town, bay, and sunset, and the food is so incredibly good I can't even explain!
And, we paid less for an appetizer/breads/4 tapas/2 desert meal (409p) than at alot of reasonably priced good-food restaurants with just a salad and entree meal.