Here are two KDE themes I have put together from a variety of sources.
The window decoration and style for this is called Acqua and can be found here:
http://kdelook.org/content/show.php?content=153
Alternately you can get this same look but with graphite type decoration here:
http://kdelook.org/content/show.php?content=154
The window decoration and style for this is called FusionX-Silver and can be found here:
http://www.kde-look.org/content/show.php?content=5404
The weather app and top bar were made using Karamba which you can also get from kdelook.org at:
http://www.kde-look.org/content/show.php?content=5585
I recommend you look around on kdelook.org because it really is a great resource if you are looking for good skins. Also you could look at themes.freshmeat.net but I found most of the stuff there to either be very outdated, or just repeats of what you can find on kdelook.org
As for the rest of my desktop, the bottom bar is the usual KDE kicker that I modified to just show the menu. I made a separate panel that contains my system tray and taskbar and I make that autohide at the bottom. It makes for a nice clean interface that I really like. I got the OSX type system icons from kdelook.org as well and there are several nice packs to choose from. If anyone has any further questions I will do my best to help you.
Aqua-Soft Forums