In today's Ubuntu Newbie Guide part I'm going to tell you about running the Metacity Compositing Manager instead of Compiz Fusion. Why you would want to do that? Because it uses less resources and it may run better for old or incompatible video cards (including Intel). You don’t even need accelerated graphics to run Metacity with compositing and it even works well inside VirtualBox.
Tired of the regulation grey bars at the top and bottom of your Gnome desktop and hankering after something a little cooler? Say something a little bit more like the dock in Apple's OSX? Then give AWN a run and get all the bouncing icons you can handle.