John,
Don't worry. Your questions are typical for a first timer. You should've heard some of the whoppers I asked before my first trip. Now with my second trip coming up in October, I feel like a pro with the help of the guys on this board. One piece of advice: drink in moderation so you are aware of what's going on around you. My buddy drank himself into sleep and was rolled by 2 chicas for $1500 (day's casino winnings) that he had on him. A lot of the guys will suggest you get a VIP card, I agree. None of us have any vested interest in it, but it does pay for itself quickly and the rest is gravy. There are hotel (Prez) discounts, restaurants, strip clubs, and the ever popular Zona Blue discount. :shock:
If you ever have any questions, do a search first. Then, if you don't find an answer post it.
To answer one of your questions, I don't think they allow working girls to hang out at the Prez. They are only allowed if accompanied by a guest.
-Orange