You can use a hub (or cross-over cable) to connect the two computers. And ICS
to share the internet service.
But - If you have broadband, and 2 computers, connecting the two computers with
a router is the responsible solution.
All computers will be safer. The router will block any malevolent internet
traffic. This further protects the internet, from your becoming infected and
spreading the infection.
All computers will run better, with the router blocking the trash infection
traffic.
All computers will run independent of each other. Right now, if you have
internet connectivity on multiple computers, either you are paying your ISP for
multiple connections (a waste of $$$), or you have to have one computer on
whenever you wish to access the internet from any other. With a router, neither
is true.
If you can afford to have more then one computer, and broadband, you can afford
a router. For many reasons.
Cheers,
Chuck
Paranoia comes from experience - and is not necessarily a bad thing.