Various Questions: Using Slackware as a router+hardware firewall

[Joe]

I was taking to iago breifly, but a friend came and he had to go. Anyhow, I've got an old-ish computer, with specs comparable to darkside (plus a keyboard and mouse), and I'm downloading slackware, that aside..

1) Does anyone have any experience using ppp to connect to the internet? (I'm going to get a hardware modem)

2) Is anyone willing to walk me through port forwarding and iptables setup?

3) Do you suggest any aditional software, for either my slackware box or my other networked computers to keep them secure?

According to iago, this is feasable, and a good idea (better than windows anyhow). I'm looking forward to knowing I'm secure-ish! =)

[Ergot]

I know that KWolf messed around with BSD and serveral other things as firewalls.