Along the same lines, I have been tweaking my action bars. I do like having a few action bars with items I use regularly and I have enough screen space that it doesn't take up that much space. I also prefer using Skinner to give it contrast from the "game" screen.
This is how I had it.
This is how I have it now. Buffs and debuffs are on right side of the screen, KTM would go on left above chat bar. I have 3 Bartender bars ...
shown here which are active on mouseover otherwise hidden. I'm debating the Skinner box on the far right side. I like the sort-of uniformity at the bottom and having no box there seems to be a little more distracting than with it.
The rest of the UI is pretty much the same and can be seen in the interface thread.