Splinter Cell Conviction on Xbox 360, 2 for £18 at Blockbusters. Note, it is preowned. Obviously you either have to want two copies of that game or one of the others in the deal, but my branch (Newark) had quite a selection. Can't remember them all but there was Fable II, Gears of War 2 etc.
Also, as a bonus, Bioshock 2 on 360 was £4.94?! I think this might have been a misprice to be honest. If this is the case and anyone lives in Newark and wants it though, worth going for a look.