ndiswrapper. It uses your windows drivers for the card. most people i've seen are using this for their wireless nics. I am using linuxants driverloader, but it cost 20 bucks. I'd try ndiswrapper first. If you go to
http://ndiswrapper.sourceforge.net and browse around the wireless networking forums here you'll find lots of info on how to get ndiswrapper working.
you can go here to find your card and get the drivers that you'll need for ndiswrapper
ndiswrapper