Right. I plan on getting my Xbox chucked up onto Live, but can't connect directly to the router because their in different rooms, different floors.

So, I need a wireless dongliethingimajiggy. Do I have to buy the £50 Xbox360 brand one, or can I just use any old one? I haven't got one spare to test, and I don't fancy spending £10-30 on one just to get disappointed. But, if possible, I'd rather spend less...obviously.

Cheers all.