WishRadar
http://www.wishradar.com/

WishRadar manages your wishlist for you, even better than Amazon and Half.com do. They monitor all the items on your wishlist, sort and filter them any way you like, and notify you whenever anything on your wishlist matches the price you want to pay at either Amazon or Half.com. You set your price. WishRadar finds your deals. This has been added to ShoppingBots Subject Tracer™ Information Blog.