Foundstone Tools
I hadn't been out to the Foundstone site recently (now owned by McAfee), until this morning, and found there have been quite a few new tools added. I keep Foundstone tools on a thumb drive, along with Sysinternals and others (like IceSword and some malware scanners), so I always have a ready copy if needed. If you've never looked at the free offerings available there, you can download any or all at there site found here.
Categories of tools available here are as follows:
Assessment Utilities
Forensic Tools
Foundstone SASS Tools
Intrusion Detection Tools
Scanning Tools
Stress Testing Tools
Spam Submission
Stinger
Utilities