My least favourite thing about being a 360 owner, has to be the constant onslaught of extras you have to purchase immediately after picking it up in order to maximise its efficiency, one of the most expensive being the wireless network adaptor, which is absolutely essential for online gaming unless you're going to hook your console directly into the phone line, or lay down an extremely long cable throughout your home.
Zavvi are parting with these wonderful little gadgets for the very reasonable price of £34.95, and if I didn't already have an original wireless adaptor, which I seem to remember having to spend between £50-60 for, I'd definitely be tempted to pick one up. You'll also make a saving of almost £4 on the next best price of £38.93 coming in from The Hut.
The wireless network adaptor works wonderfully. I live in the middle of nowhere, with a sub-par router thats downstairs on the opposite side of the house to my room, yet miraculously my xbox can still pick up a signal and I'm yet to have any real problems connecting to xbox live for a bit of multiplayer madness.
For optimal results with the wireless n network adaptor, you'll need to own a router that supports wireless n, but its perfectly capable of handling older network types.
If you haven't got a wireless adaptor for your xbox, then you should definitely pick one up because at this price its an absolute steal.
Thanks to andywedge @ HUKD