I have used BackTrack by myself,but I used BT4 now BT5 provide much easy way of useing it as a Live CD and I found that tool really useful and may be every respected administrator should have a copy of BT.
The popular Linux distribution for network penetration test and analysis for vulnerability’s have arrive with new face No 5. The software its Ubuntu base Linux OS with more then 50 tools useful in the Security testing of home,company and many other kind of networks. In a link bellow I would show you the review of BackTrack 5
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BackTrack is intended for all audiences from the most savvy security professionals to early newcomers to the information security field. BackTrack promotes a quick and easy way to find and update the largest database of security tools collection to-date. Our community of users range from skilled penetration testers in the information security field, government entities, information technology, security enthusiasts, and individuals new to the security community.
Feedback from all industries and skill levels allows us to truly develop a solution that is tailored towards everyone and far exceeds anything ever developed both commercially and freely available. The project is funded by Offensive Security. Whether you’re hacking wireless, exploiting servers, performing a web application assessment, learning, or social-engineering a client, BackTrack is the one-stop-shop for all of your security needs.