By now, if you haven't seen Compiz and Xgl in action, you probably have heard of it. You may even be wanting to set it up yourself. If so, this guide is here for you.
TecTonic has an article for you.
But fist, some warnings with regards to things that can go wrong. If you are not comfortable, or at least won't cry at the sight of a broken X server, you probably should wait a little while or get an experienced member of the Linux community to give you a hand. There are plenty on freenode — just log in with your favourite IRC client and ask for help. Before we get into the real meat and potatoes of this guide we will need to verify that all the required hardware, drivers and backups are in place.