I'm looking at getting wireless internet for my house - I have an iBook G4 and a few years old Windows XP machine. The only problem is with the XP machine, which doesn't have a network card installed. So, here are my options: 1) Get Airport Express and buy the network card for the XP machine. 2) Get Airport Extreme and route a network cable to the XP machine and the Extreme from our cable modem. We might eventually go non-Windows, but right now it's not really an option. Any feedback would be great!