HenWen for Mac

From Nick Zitzmann:

HenWen is a network security package for Mac OS X that makes it easy to configure and run Snort, a free Network Intrusion Detection System (NIDS). HenWen's goal is to simplify setting up and maintaining software that will scan network traffic for undesirable traffic a firewall may not block. Everything you need to have is bundled in; there is no compiling or command line use necessary.
Features:

• Drag and drop installation (no installer or uninstaller necessary)
• Includes a precompiled Snort 2.3.3 binary for Mac OS X
• Supports all major Snort preprocessor and output plugins
• Supports all Snort rule sets, and makes it easy to add additional rule sets
• Supports configuring all current Snort rule variables
• Supports direct logging to MySQL databases
• Supports ODBC database logging (for PostgreSQL, Oracle, MS SQL Server, and more)
• Supports auto-blocking
• Can update Snort rules over the network
• Can set up Snort to run at system startup
• Includes a helper application, LetterStick, which can:
• Provide real-time security alert pop-up windows
• E-Mail alerts as they are received
• Speak the alert text, or play a sound effect, when an alert is received
• Use Terminal to view the Snort logs
• Supports modem and broadband network connections
• Disk-volume-format-agnostic (does not require HFS+ to run)
• Available in English, German, and French (in the same package)
• And more...