Suggestions Needed

[Justyn]

I'm a home user rather new to firewalls. I have a spare pc I want to use 
as a firewall machine for our local lan of 2 workstations w/cable modem. 
I'm wanting a linux/unix flavor os for the firewall system. Would I be 
better off using a stripped down os that is tailored for firewall 
machines or something like redhat/freebsd? Would would anyone suggestion 
as a starting place to learn.

Thanks!