Ok, so the firewall/router box needs to be seperate from everything else. What about a file server and a mail server? Can they both be on the same box? A friend was throwing away a P100 and I know it is wimpy, but it should be enough for a firewall. I have an old K6-2+ and as soon as I get a PCI controller card that will recognize my 200 GB HDD since the bIOS doesn't I will use it as a file server.