Just noticed a great deal from Argos, the Xbox 360 with the 250GB harddrive for £189.99, I hear you all say, but you can sometimes find the same machine for £160, however this comes with 3 free games. Sadly the 3 free games aren't of your choice, but two packs to choose from, the 2 gamer packs are:

pack 1: Gears of War 2, Fable 2 and Halo 3 - Xbox 360 Games 18+.
pack 2: Forza 3, Mass Effect and Viva Pinata - Xbox 360 Games.

check out the deal here:

Argos - Xbox 360 250GB - 3 free games

more xbox 360 deals here:
Buy Xbox 360 from Argos.co.uk - Your online shop for Video games