DB6,
Your best option is a Hub/Switch and two Cat5 Cables. If you are going across a very short distance, you could just use a Crossover Cat5 Cable. (3 ft. or less.) The longer the cable is, when you are not using a Hub/Switch, the lower the Throughput.
Take Care,
Capt. Richard J. Gentil, Pres.
Naples Air Center, Inc.
Custom Computers of Naples, Inc.
P.S. A note if you have one or more comps connected to the internet: If you turn on sharing and share a Drive/Directory, remember to put on a Password on whatever you have shared, or you will have given anyone that sniffs your IP Address, access to your shared files.