"Not only can desktop decorator Compiz Fusion add eye candy to
your system that leaves Windows and Mac users drooling on their
keyboards, it can seriously boost your productivity. As Compiz
Fusion creeps closer to its first official release, its effects are
well ahead of anything found in commercial operating systems. Let's
take a look.
"Depending on your distro, Compiz Fusion can be finicky to
install. Ubuntu users have a few options that include
Treviño's repositories, Amaranth's repositories or grabbing
the DEBs manually. I strongly suggest using either of the
repositories hosted by Treviño and Amaranth. If you're
running Ubuntu and have never used Compiz Fusion, this thread is
probably the easiest way to get going..."