I think this is mostly for the States, but a cool deal from BestBuy, buy one 360 game, get 50% off the second. And since works on pre-orders you don't need to be charged at once.
http://www.bestbuy.com/site/olspage....&type=category
Games you can pre-ordeR:
Call of Duty: Modern Warfare 2
Forza 3
Dragon Age: Origins
Marvel: Ultimate Alliance 2
Halo 3: ODST
Guitar Hero 5
Splinter Cell: Conviction
Assassin's Creed 2
BioShock 2
The Beatles: Rock Band
Brutal Legend