A coworker sent me this: a in-depth guide on tweaks for XP and Vista.  I downloaded the Vista tweak guide as I am still searching through the  nooks and crannies.   It’s more than a tweak guide as it also shows you basic info as well.  Overall, there is a lot of good info that’s easy to read.   If you wish to understand computers better or you want to feel more ‘like a pro’ check it out.  Koroush Ghazi did a great job compiling it, and it’s FREE! http://www.tweakguides.com/TGTC.html