One thing I've learned about System's Administration is that we never cover everything and if there is something we forgot/overlooked, then it's by there that problems are going to apear.
I've been using MySQL has a type os structured storage while I'm diging information from the whole network, at work.
It's quite amazing the amount of information there is in a simple log, if correctly treated... :-))
Well, I have to go now, I'll post again from work!