I'm really confused here. I have an Airport Extreme card in my mini and want to know....do I have to have an Express base station in order to connect to the internet? I already have a linksys router going to my cable modem and was using that via ethernet until my ethernet connection got zapped in an electrical storm. I'd like to avoid having to buy the Express if I can possibly avoid it, but I don't see how to connect wirelessly to the Linksys.