When you vote at game for the game of the year you will get a £5 code emailed to you for any of the games that are listed for nomination.
so call of duty black op xbox version is currently £28.99 new delivered so would be £23.99 i've just tested it on this game but believe it works on all the other nominated games.
games include (price after using code)
Call of Duty Black Op (xbox) £23.99
Dance Central (xbox) £27.99
Halo reach (xbox) £29.99
Mass effect 2 (xbox) £7.99
Fifa 11 (ps3) £18.99
Need for speed hot pursuit (ps3) £18.99
Red dead redemption (ps3) OOS
Super mario galaxy 2 (wii) £27.99
Heavy Rain (ps3) £19.99
Limbo 2100 points card (xbox) £11.99