Thanks for all your help. Here's what I ended up doing:

Taxi from Conrad to HKG Central Station - $15 HKG
RT Sameday Ticket to Airport - $100 HKG
Taxi (Must call BLUE line, phone number is on the phone near the taxi stand) to Po Lin Monestary - $151 HKG (One way)
Taxi back from Po Lin Moestary $152 (HKG (One way)

Train back, covered in RT Ticket
Taxi from HKG Central to Conrad - $15

Total: $433 HKG or about $50-60 US. FWIW United Airlines does have a deal for 7 hours worth of tour for $101. If you wanted to make this cheaper, here's how to do it:

1) Take the train line (not express) going one stop short of the airport to (Tung Chung), you still go to Central station, just choose the train. Not sure how much this would have saved, but I bet a little bit.

2) Don't take a taxi back (take the taxi there), then on the way back, take the bus down into town (it will be the bus with the big line) and then ask for the bus to the airport or Tung Chung. The bus was a few dollars HKG

3) Take the bus both ways, fairly gutsy if you aren't sure which bus to take.


Note: Whatever you do, DO NOT take a taxi to/from the airport to HKG, it's exhorbantly expense. And if the Taxi driver tries to convince you it's the same at $250 HKG, it's not. If you return the same day, the ticket to/from HKG and the airport is only $100 per person on the express train.

Lastly, getting from the train to the taxi in the airport is kinda trickey. To pull it off, when the train arrives, you need to go towards the main building, then once there, go LEFT, then down one level, then wrap around left again, then towards TAXI, but be sure that you don't follow the sign to the buses or to the Car Park (this will lead you to other peoples cars, not Taxi's).

Overall, it was quite worth going, and I'd recommend it to anyone. Give the vegaterian DELUXE meal a try when your there.