Yay! Yet another interface for iptables. Personally, I like fwbuilder.
www.fwbuilder.org

fwbuilder will allow you to create firewall rules for multiple types of friewalls, (ipchains, ipfw, iptables and even cisco pix. IMO, its the best interface out there. Just because its so easy to configure multiple platforms. It looks just like the policy builder for a checkpoint firewall 1. I like the drag and drop interface. It makes creating firewall rules childs play. All a user needs to knows is some basics on services, ports and what hosts should be able to do.

Thanks for the heads up on KMyFirewall. I like how there are so many options for everything on *nix and a user can choose the solution that fits their needs the best.