The latest refresh of Atlas is now available and includes two conrols that made me say, "Finally". Drop shadows and rounded corners are a staple of the web today. But if your not a designer, just a developer, they are a pain to produce. 4GuysFromRolla has had a rounded corners control for a while, but it is not XHTML compatible and there are no drop shadows.
Now hopefully they will add gradients so we can easily create a panel with rounded corners, drop shadows and a gradient background.
Download the Atlas Toolkit