I'm looking for the cheapest WiFi card I can find in a PC card version. They just started supporting wireless internet on my old campus, and my girlfriend might want to go out there and use it. Any suggestions?

Watch gotapex.com for a few days. You can probably find something for about $15-$20. There's one on pricewatch for $16.50 shipped, search for wireless routers and it's listed there by "mistake".