I'm buying a laptop (for the gf) w/ winXP. The gf's 15 year old son also has an XP desktop that is more or less permanently infected. They have a cable modem for internet. I also intend to buy a wireless router. My ultimate goal is to get the gf connected via wifi and have the 15 yr old's desktop on the internet as well but I do not under any circumstances want either XP box to be able to acess the other. My idea is this:
|--------------------> Wifi --> gf's laptop
modem --> wired router--|--> desktop
Basically I'll put the wired router behind the modem and connect the desktop directly to the wired router. The wifi will also be behind the wired router w/ only the gf's laptop on the wifi. Of course each will have different subnets and hopefully the desktop cannot infect the laptop. Is there a better and/or easier way to do this? Perhaps a Linux router would be a better idea but that really isn't an option in this scenario.
I'd like to hear any suggestions or ideas on how to best do this. Thanks.