Listmania!
Buying an Xbox 360? Look at this before you buy.
Xbox 360 Console (20 GB Hard Drive)Xbox 360 Console (20 GB Hard Drive)
Buy used from: £120.00
This option is the best for a first time buy, as it gives you enough to get playing online and talking online straight away (if you have an xbox live gold membership).
Xbox 360 Wireless GamepadXbox 360 Wireless Gamepad
Buy new: £27.79 / Used from: £18.50
An extra controller for when a friend comes round.
Xbox 360 Quick Charge Kit - White (Xbox 360)Xbox 360 Quick Charge Kit - White (Xbox 360)
Buy new: £16.45 / Used from: £13.39
This will charge your batteries, it is alot cheaper in the long run (comes with one battery pack).
Xbox 360 Rechargeable Battery Pack (Xbox 360)Xbox 360 Rechargeable Battery Pack (Xbox 360)
Buy new: £9.99 / Used from: £5.98
Get two of these, this will give you three in total, one for each controller, and one for when one runs out of charge.
Xbox LIVE Gold 12-Month Membership Card (Xbox 360)Xbox LIVE Gold 12-Month Membership Card (Xbox 360)
Buy new: £32.99
This will get you playing online.