NetAuth OS X
a small application used to authenticate against the Checkpoint Firewall-1 system
NoobProof is a basic firewall configuration tool. You can filter incoming connections using a very simple interface. You can remove or add custom services and save a startup script to keep rules active after reboots.
WaterRoof is an IPFW firewall frontend for Mac OS X with a easy interface and many options. Features include dynamic rules, bandwidth management, pre-defined rule sets and a wizard for easy configuration. You can also watch logs and statistics. Rules configurations and network options can be saved and optionally activated at boot time. Detailed documentation included in the .zip file.