First two things I notice (that I didn't expect). First is Konsole has a bad artifact problem. I try any of the menus, and the menu doesn't go away when I click off. The image of the menu stays there. I'll go looking for that myself because it sounds like a strange one-off type of problem.
The other one I'm sure someone here knows off the top of their head. For some reason my fonts aren't working in Firefox. I've got the Bitstream stuff installed and it looked good in Gnome. Where do I go to adjust/fix fonts in KDE?