The background is Aqua Tux Clouds (http://www.kde-look.org/content/show.php?content=2045), with some nice round corners, making it look like an old TV. Two transparent kicker panels, the lower one centred; it ain't getting far more cleaner than that.
I still have trouble removing the taskbar button in the upper left corner, but I expect it to come.
- Update it is removed now. There were an option to do it in taskbar preferences -
I have long seeked to make a nice desktop, and messed around with karamba-themes. But nothing was got enough. Then I tried this, and found out that I didn't need all this fancy candy to make it look cool. Well I could use an email applet, but I don't dare adding it...