zonealarm lor... get it at
www.download.com
this firewall is the most downloaded and recommended by many many review sites. BUT
it has nothing bad as a firewall from any firewall protection aspects
u will get problem when you try to uninstall this firewall (zonealarm, zonealarm pro, zonealarm suite....) (tested on windows sp2)
your LAN will be in "Not enough resources, cannot connect" / your ADSL cannot dial cause uninstallation didnt remove completely from your windows. you may clean this up manually but quite troublesome...
if u decide to use this firewall software. dun update version / dun uninstall.
cheers~!