As of the 11.10 release I've switched from vanilla Ubuntu to Xubuntu for a plethora of reasons. Thus far I'm loving XFCE and have nearly everything configured the way I like it. The one thing that's still got me stumped is alt + middle mouse button window resizing. How do I accomplish this in Xubuntu/XFCE?
I think Alt+[Middle Mouse Button] is the Key binding used by default on Compiz and I don't know if there's a way to configure xfce to do that, but you can always type Alt+F8 to resize windows using the arrow keys.
Anyway if you want to install Compiz you can put
sudo apt-get compiz on a terminal, and to run it from the startup copy the file
directory (if it is not already there) and change the lines
<property name="Client0_Command" type="array"> <value type="string" value="xfwm4"/> </property>
<property name="Client0_Command" type="array"> <value type="string" value="compiz"/> <value type="string" value="ccp"/> </property>