Here is what I use! And I bought this exact same one, re-certified and everything! And only $10!http://www.tigerdirect.com/applications/SearchTools/item-details.asp?EdpNo=5201967&CatId=2699
Arrived in PERFECT condition and I haven't had any problems (I am running Windows 7 Ultimate)
Just plug the receiver in and it works. (Don't use their software. I actually had problems when I used their drivers and such. Problems stopped when I simply used windows to auto detect and install it)
Good luck man.
They also make a wireless N version, but I don't think they have any re-certifieds. I totally recommend Linksys/Cisco. They are the #1 company in their area anyways. Netgear has ALWAYS given me hell...Edited by Rider85 - 1/6/11 at 12:26pm