Hi
well I use as software firewall :
visnet firewall from deerfiled ( the ancestor of one of the best firewalls ever : conseal )
its a statefull inspection firewall ( www.deerfield.com )
for the hardware :
trend micros gatelock 200x
its a http base linux firewall with IDS / Web content / email content check box.
great system. But a DSL Line is needed. And you can plugin up to 32 user ( via hub or switch )
greetings M.

sorry
its called visnetic firewall