Multiple firewalls on the same machine is kind of silly. It would be best to get one good one and learn how to configure it properly (outpost and tiny are both decent). Add on antivirus and possibly a host based ids system. Maybe a couple of scripts to check your logs (event/firewall/etc), maybe audit your user accounts, and periodic checks on resource usage...and send you mail when it finds something funny. Just schedule them to run however often as you see fit.