My local branch of everyone's favourite pikey newsagent/bookstore WH Smith seems to have decided no one's buying Xbox 360s any more as loads of their games seem to have been remaindered. Highlights include Blue Dragon for £4 and CoD4 for £19. Can't remember any others off the top of my head but there were a few I would've picked up immediately if I hadn't already had them.

They might also have something going for PS3, I didn't check thoroughly enough.