A very clean and unique admin theme with a touch of pink!
It ships with an easy-to-use, very flexible six-column CSS grid system (similar to 960.gs). You lay out the content the way you want using valid XHTML 1 .0 Strict. Two-column-width left sidebar? Three right sidebars? No problem. Just look at the preview to get an idea of the endless possibilities.
The navigation as well as the tabbed boxes are powered by jQuery. The code has been sufficiently commented. Enjoy!