On Thur 3-19-09 Giveaway of the Day is giving away jFirewall Personal Pro. Never used this my self. If interested go here. http://www.giveawayoftheday.com/jfirewall-personal-pro/
If anyone is interested on 25th April 2009 jFirewall Personal Pro will be on BitsDuJour with 59% discount. http://www.bitsdujour.com/software/jfirewall-personal-pro/