Agreed. TikZ is simply an awesome tool. If people want to try it out, I found A Very Minimal Introduction to TikZ by Jacques Crémer a great resource to help get started. There are also some handy examples here: http://www.texample.net/tikz/examples/

EDIT: Forgot link to Crémer's guide: http://cremeronline.com/LaTeX/minimaltikz.pdf