I know this is for deals, but I would like to mention that
www.tivs.ca is a good site for Canadians that want to check what they can get for trading in their games at Future Shop, Best Buy, EB, Rogers Plus, and Blockbuster. Future Shop, and Best Buy seem to have the better deals, but they don't accept hardware or accessories, but then again you can put that credit into anything else other than games.