Just got my cable modem and thought i would share how its being networked.
First thing I did was purchase a small hub (under $30) and a router from D-Link - their low end Di-701 is under $90. Then I hooked the cable modem to the router using standard ethernet, and connected the uplink on the hub to the router using a cross-over ethernet cable. Next I plugged my 3 home computers into the hub using standard ethernet.

Now comes the fun part:
You have to turn on the Router FIRST, then the cable modem, then the computers. - The router will show up using the D-Link utility and you give it the same name as your account # for @home. Then you set the TCP/IP up on the computers using DHCP with that account number as the server.

Results: Pretty good - my next purchase will be 100bt cards for the computers because they are running 10bt, but even so I can have all three on accessing the net with speed better than 56K dial up.