I am hoping to use two computers which both run xp home and are networked via a crossover cable to access my about to be activated broadband connection. I believe I will be able (if I can get it right) to enable internet connection sharing on the PC with the broadband access which will mean I can surf the net on the other machine also using my broadband connection. I also believe that in this setup the main PC will need to be on. Will I have to install antivirus and firwalls on BOTH PC's or will the second one simply use the products on the PC connected directly to the net. The modem is a usb type and I don't want the expense of a router etc if I can help it as I am not concerned that the 2nd PC cannot connect independently of the one with the broadband connection.