Thanks for the info, I've only got a MacMini though so not got tons of CPU power to waste.
Flash just eats up CPU cycles on our platform too. Was looking for a prebuilt screensaver that I can use as a desktop. Think this can be done with .quartz files (used by most screen savers) by placing them in the correct location (library) in OSX. So was hoping for an OpenGL based screensaver to try and reduce the CPU load.