Foundstone has a number of free resources including some great free tools. Here's a list:

Assessment Utilities
  Fpipe™ v2.1
Forensic Tools  
  Remote Forensics System v1.0
  Pasco v1.0
  Galleta v1.0
  Rifiuti v1.0
  NTLast™ v3.0
  Forensic Toolkit™ v2.0
  ShoWin™ v2.0
  BinText™ v3.0
  PatchIt™ v2.0
  Vision™ v1.0
Foundstone S3i™ Tools
  Hacme Books™  v1.0
  Hacme Bank™  v1.0
  .NET Security Toolkit    NEW!!! v1.0
  .NETMon™  v1.0
  Validator.NET™  v1.0
  SecureUML Template  v1.0
  WSDigger™    NEW!!! v1.0
  CookieDigger™    NEW!!! v1.0
  SSLDigger™  v1.02
  SiteDigger™ v2.0
Intrusion Detection Tools
  IPv4Trace v1.0
  Carbonite™ v1.0
  FileWatch™ v1.0
  Attacker™ v3.0
  Fport™ v2.0
Scanning Tools 
  SuperScan™ v4.0
  MS05-051 Scan    NEW!!! v1.0
  MS05-039 Scan v1.0
  NetSchedScan v1.0
  DSScan v1.0
  MydoomScanner v1.0
  MessengerScan v1.05
  SQLScan v1.0
  BOPing™ v2.0
  ScanLine™ v1.01
  Trout™ v2.0
  DDosPing™ v2.0
  SNScan™ v1.05
  CIScan v1.0
  RPCScan v2.03
Stress Testing Tools
  FSMax™ v2.0
  Blast™ v2.0
  UDPFlood™ v2.0

http://www.foundstone.com/resources/freetools.htm

Never heard of them, used them once, permanent addition of your toolbox... Share your thoughts.

Don