It's not new and I can't provide any screenshots but
http://www.vimeo.com/2123015
this was my UI which I liked quite much - with 3.1 (dual specs hopefully) and I'll rebuild and enhance it.

Xorn

PS:
if people want to know which addons I used:
- Map: Sexymap
- Actionbars: Bartender4
- Unitframes: Pitbull
- Buff-frames: ElkBuffBars
- some other stuff I can't remember