So I have been trying my hand at PRICELINE.com using your link and kept increasing my bid for a 4* hotel in Downtown Baltimore (by adding areas without 4* hotels). But for some reason I decided to try on a 3.5* for $100 forgetting that one of my other previously chosen areas might have 3.5* hotels. And it was acepted! For the Sheraton at BWI for $100 / night from 6/9/12 - 6/13/12. Not at all what I had in mind and sudden panic. So I called to request an "instant" cancellation which they provided. A cancellation fee equal to one night's stay = $100. If I re-book through Priceline they will credit the cancellation fee minus $25. Whew! I'll most definitely be on my toes when I re-book.