...the latest AVG Antivirus didn't have any truck with it.

I will be going to a Broadband connection soon, and will need to network my two machines together to have access to it. I haven't done any research on it yet (CDW is my friend), but I believe that a Linksys or similar broadband wireless modem should do the trick; according to our cable carrier (Comcast, of course), that's what they use, and the model that they use is supposed to contain a firewall of some sort (naturally, the sales lady, while very nice, didn't have a clue about what model that was....)