You have outlined a pretty good sightseeing itinerary for a few short hours in AMS! However, keep in mind that it can be pretty cold and wet in February!! You would be better off, IMHO, to buy a strip ticket for the trams when you arrive at the Central Station, and then use them for your travels through downtown. What looks like a short distance on the map is really quite a hike. And unless you have been there a few times before, EVERY canal looks the same and the probability of taking a wrong turn while walking is quite high! Also, I suspect that you will be pretty tired after the flight from Detroit. It is not quite long enough to get any meaningful amount of sleep, and especially in Economy Class where the noise and other interruptions can be frustrating. I often find that just after I have dozed off, an FA will wander down the aisle shouting "Duty Free, Duty Free" or even worse the seemingly nice person sitting behind you will decide they need to use the restroom and will use the back of YOUR seat as their own personal "assistant" to help them get up from their seat. I hope your stamina and supply of adrenaline will carry you through a pretty exhausting 30+ hours of traveling!!

Next time, you might consider doing the AMS visit on the return flight, taking a forced overnight (read that as "free stopover") in Amsterdam. If you arrive in AMS just after the flight to Chicago leaves at 10:30 am, you can have the whole rest of the day to explore the city. Get a cheap hotel for the night, sample some of the nightlife while you are at it, and then return to the airport after breakfast the next morning just in time to catch your flight back to the States. I will be doing exactly that in a few weeks on a return trip from Munich. I decided that even though I pass through Schiphol a dozen times or more each year, it has been too long since I have had the pleasure of a visit to Amsterdam. So on that trip in early February, I just said now is the time to do it!!!

One last thing: while you are in Dublin, I heartingly recommend a great Brew Pub and Restaurant called "Messrs. Maguire" that is very easy to find. It is right in the center of downtown, on the south bank of the river, a few steps east of Connolly Street. We liked it so much when we were there last March that we returned twice more: once for a late-night beer on the way back to our B&B and again on a Sunday afternoon for their Irish traditional Corned Beef and Cabbage and Potatoes, along with watching a Rugby game on TV, and lots more of their great beer. Prices are reasonable and the atmosphere is great too. Enjoy!!