Squid, Apache 2 and FC4

Anyone out there using Squid as a web accelerator or reverse proxy?

Before I attempt to reinvent the wheel, I was curious about how you accessed site if to the "outside" world it's the same IP address? In other words, I have two webservers behind my wireless router and I only have two ports forwarded from the Internet to them (one for each server).

I thought it would be "better" if I used squid instead and eliminated one of the forwarded ports. But how do I access the URL from the outside world?

None of the documentation I've read on Squid has gone into that workflow process.

Any suggestions would be great!