Let me second that URL as having saved me more money on Hotel Stays than all other deals I have come across combined. The challenge with Priceline is that you must be flexible, you can't pick hotels (only price category and location) and you don't typically get as many perks as with paying full price. However, I am staying for 5 nights at the Cambridge Hyatt next week for $46-$50 a night and later this summer at the Park Hyatt Stanhope in NYC for $75 a night, just to give you a couple of examples. The reason Biddingfortravel.com is so important is that you can see what bids are being accepted for certain properties on certain dates in certain zones and therefore you can pinpoint the lowest possible acceptable bid.

It doesen't always work out exactly the way you would like but for 60% off I don't mind being flexible.