I happen to prefer the newer plastik kde theme over keramik. (knoppix 3.4 does not have it - it's only an "apt-get install kdeartwork" away, though). I thought some of you might enjoy the following little themes for two non-kde popular applications:

mozilla http://www.polinux.upv.es/mozilla/
xmms http://kde-look.org/content/show.php?content=7947