Well, all the cool kids are doing it so I thought that I better have a go. XGL and compiz run on my integrated i915 video without problems and I am amazed at the speed and quality for pre-alpha software.
After all of the hassle of building Compiz and friends (excluding XGL) from CVS I found this and this (includes new opacity plugin).

please… can you post how to you installed all this? in my i915 don’t work
sorry, i know a little english