Not sure if I should of put this in deals or voucher.
Was in my local GameStation today. They guy serving me said they had a offer on. If you pre order Portal 2 you will get £5 knocked of it when you pick it up. No deposit required and you don't have to go and pick it up if you don't want to. I know this probably wont be the best deal as am guessing the game will be £39.99 (£34.99) with the fiver off. But this will be good if you have games to trade in I guess.
I will upload the slip later on. Please note: I got a PS3 order slip but am guessing this deal is for 360 and PC as well.