Download the Medusa NVIDIA GeForce GTX 200 series technology demo -
With each launch of a major new GPU, NVIDIA will release a technology demo which is designed to showcase the power of its new graphics chips. It creates some early excitement for their upcoming product.
Check this one out, one of the best tech demo's ever made.
There is a a SLI profile for this in the new 177.35 drivers and reportedly it also runs fine with the trusty old 8800GTX/Ultra's.