I've been using Ubuntu as my primary desktop operating system for about 2 years now. (Previously, I used Fedora). The only annoyance I had when I started using it was that there was no way to move the windows controls (the Minimize, Maximize, and Close buttons) from the left side of the window to the right. I did a little research and found the following command which does the trick:
gconftool-2 --type string \
--set /apps/metacity/general/button_layout \
"menu:minimize,maximize,close"
It's that easy. While it would be nicer if there was a way to do this through the 'Apperance' application GUI, this works.