Play.com has quite a few PS3 games for only £39.99 making them cheaper than other sites for PS3 preorders by £10.
Games include: Call of Duty 3 (link takes you to this) | Fall Of Man | MotorStorm | Burnout 5 | Army of Two | Def Jam: Icon | Assassin's Creed and much more!!
These are the cheapest prices i can find!!