Kde Look is worth a visit , if you want to customise your KDE install.
The iconsets that are available are well worth installing. These can radically change the look and feel of your desktop.

I personally give this site a +10 score as it's one hell of a resource for twiddling with your KDE. You can waste an entire afternoon just doing this, as I've found myself unfortunately doing. [ "oh crap - it's already 5pm .. and i've been customising since 11AM ! "]