I know its not a deal as such but for a heads up Amazon are now doing Trade Ins on video games.
Prices vary dependant on the age of the game but some examples are: -
Call of Duty - Black Ops PS3 - £27.00
Call of Duty - Black Ops Xbox360 - £29.99
Need for Speed - Hot Pursuit PS3 - £30.00
Assassins Creed - Brotherhood Xbox360 - £27.74
Fallout - New Vegas PS3 - £16.50
As far as I'm aware the trade in works by you selecting the games you wish to trade in and Amazon then give you a price for each game.
You then have 7 days to send the games to them free of charge and they send you a gift card as payment.
Seems a good deal especially given the 7 day price promise.