I have pfsense but I don't use it as my active system.
P3 1Ghz 512MB RAM CF as HDD.
I was testing waters with, monowall, untangle and pfsense. I choose untangle because of the fancy gui, and it's filtering of spam, viruses and such. Easier to control the kids, so to speak.
Want access to a Solaris server? For free? Send me a PM!