The wireless cards can be USB or PCMIA cards. So which ever is better for you. As far as setting it up, it isn't that difficult. The process has pretty much dummy proofed, so it is mostly PnP. Now to share the internet connection, XP has ICS (Internet Connection Sharing) that should work. I personally haven't used ICS before, so I do not know how well it works. A few other people on here have complained about it and made suggestions of other programs to use to accomplish the same thing. Let us know how it works. It seems interesting.