So I've been working on a template for Drupal for this project I've been doing and I thought I would share the tools that have really saved my butt.  First is a great little CSS book - Teach Yourself CSS in 10 Minutes.  It's not the most detailed tome on the subject but it's an excellent quick reference when it comes to CSS syntax and whatnot.  The second, and most valuable, is Firebug, which I can't say enough good things about.  It lets you inspect your CSS tags so you can see what's working and what is breaking your layout.  It's especially helpful with things like Drupal templates that have a lot of classes and nested classes that can be daunting when you just look at the code.  I would have given up long ago if it wasn't for this great tool.  The final tool is Danny, which is funny because I'm the guy that taught him about CSS in the first place.  These three things or similar substitutes can turn anyone into a worthy CSS wiz.  Seriously.  I thought I would share these here since people are always asking me about resources and seem to think I know what I'm talking about, which I often don't.