Yes, I totally agree with the advice from wrob. The area in Centre City South on Priceline will not give you hotels in central Amsterdam, which is your preferred area. At the moment most 4 * hotel "bidders" seem to be getting the NH Amsterdam Centre Hotel, which is nearer the Museum area, but still pretty central. I have stayed there myself in October. Occasionally, the Moevenpick turns up when the bids go higher. Knew nothing about Priceline, Name Your Own Price, until I read at length about it, on the Tripadvisor Amsterdam Forum.