Russ, quick question, do you have an old 486 laying around.. if so you should try IPCOP..its quick and easy. and when your secure in your knowledge about IPTABLES.. you can go and setup your linux box as a firewall.. I have a SOHO setup in my private (home school) here in japan.... 12 boxes, multi platformed everything from M$98 to MDK9.1 and I've had no problems since I started IPCOP.
please note that ipcop needs its own box.. its 100% firewall.. and you can access it from any station. just an idea from a newbie to a newbie!! -- Gavin Rollins C/O GES Japan Sent 2u on a M$ free system!
Want to buy your Pack or Services from MandrakeSoft? Go to http://www.mandrakestore.com