New version of the CSS Control Adapter Toolkit
Brian Goldfarb announced the new version here. Scott Guthrie has a nice walkthrough here. The toolkit itself comes with a tutorial. You can get the toolkit here.
Are you saying to yourself "Great, but what the heck is it?" Many of the ASP.NET 2.0 server controls render out of the box using html tables. This toolkit allows those of you who are skilled in the art of CSS to work your magic! As Scott says "control adapters use a new built-in extensibility mechanism in ASP.NET 2.0 called 'control adapters'. A control adapter allows you to plug-in into any ASP.NET server control and override, modify and/or tweak the rendering output logic of that control."
-Marc