How to Set Up a Wired Network for Your Macs – For Dummies http://www.dummies.com/how-to/content/how-to-set-up-a-wired-network-for-your-macs.html
How to Set Up an Airport Express to Provide a Wired Connection : alexking.org http://alexking.org/blog/2010/01/30/airport-express-provides-wired-connection