yeah £60 is the official wireless one, there is no 3rd party usb wireless device that works for the 360.

however, like brett said, if you want to do it cheaper buy a ethernet wireless bridge, can be had for half the price.

eBay, half the price, same job.

The wireless adapter i saw was in GAME. Can't remember if it was a proper Microsoft thing but it was £60 or so.
Where can i locate an ethernet bridge?

Don't buy the official Microsoft thingy. Just get an ethernet bridge.

How do you know if the router has a network key? I've got a Sky netgear router.
EDIT: Also, whats a good range from the router to use Live on? I'm only planning on using Silver for the time being so i don't need amazing speeds for gaming.

[Edited on 24-10-2007 by Schlumpfy]

just plug it in, go to the settings panel -> connections -> auto setup add your network key if your router has one and it does it autoatically.

bump as id also like to know

I've seen these xbox wireless adaptor thingy mabobs in the shop and was wondering what i would have to do to set up some sort of connection with my dads wireless router? Do i just plug the adapter in and go on search or something within the Xbox menus?