A few things to know about Priceline:
1. Reservations are non-refundable when you use Name Your Own Price.
2. Rooms are only guaranteed to accommodate a maximum of 2 people.
3. No guarantee which amenities your hotel will have. (e.g., shuttle, pool).
If #2 or 3 above is important, I suggest you use Hotwire instead. You will pay a bit more but still get a great deal. Plus you can book rooms for up to 4 people and you know what amenities the hotel has before you book.
HotelDealsRevealed.com is another good Priceline and Hotwire 'helper' website.
Thanks for the warning about Priceline's occupancy limit of only 2 people per room. Not something I want to risk. HotelDealsRevealed seems like an excellent resource as well.