A buddy of mine that works at the same school as me has released a new distro of linux called "Plan-B"

It is a "live" cd used for

Forensics/Data Recovery
System/Network Analysis and Security Scanning
Temporary Network Device/Server
IDS / NIDS System
Network Status Report Creation

He was featured in an E-week aricle this february located

http://www.eweek.com/article2/0,4149,1532000,00.asp

Check him out at

http://www.projectplanb.org