you will be able to buy a 360 premium instore with extra wireless pad, wwe smackdown v. raw 2007, pgr3, x-box live arcade and ANY 360 game for £314.99, this will be available in Gamestation stores as soon as the bundle stock arrives probably Friday or Saturday.
I'm sure you can get the 360 premium cheaper but I haven't seen a deal where you can Crackdown for example as well as all the 3 free games and extra pad for this price.
In my local store they will also trade the bundle titles.
They also told me they is a rumour wii will be in stock Friday. Also online you can get Quidco