I have a Buffalo PCI G300N
http://www.newegg.com/Product/Product.aspx?Item=N82E16833162012
just the card and antenna..no box or disc...
it works great and has excellent range, but I don't use it anymore..
$20.00 shipped
heat is crosshairs 324-0-0
I also have a quad and a 260GTX
I came from XP to Vista 64 about 2 months ago.....you could not pay me enough to go back.
It games just fine, is stable as hell, and is all around a huge improvement over XP.....get it, you wont be sorry...and you will never go back..:)