Thanks Mittens, always looking for another toolset to play with.

Most of my experience thus far has been with windows tools, so my experience with linux apps is limited. Heck, I'm having a difficult time just getting a stable version of anything working.

The tools do work, and they work very well. The appeal of Linux for me is the fact that for the most part they are cross platform...and I am working hard to make the switch. (and there are so many more tools available)

I have yet to use any of the tools for anything other than simply learning how to use the tools, so I can't comment on actual usefulness yet.

This particular toolkit you mention seems to focus on honeypot analysis, and IMHO, anyone involved with system administration should have at least some working knowledge of how intrusions "look", if only for the sake of knowing the correct way to preserve evidence for real "professional" analysis. So in that sense, I think they are indeed useful.