Which demos to showcase x1900xt gpu?

[mithrandir]

Any good demos to flex the muscles of X1900XT?

I've run the ATI Toy shop demo and space screensaver, both okay but don't seem as impressive as running say Oblivion or other games (FEAR, Quake 4, coH, C&C3, etc)

Not sure if anyone knows of any nVidia demos I could try out (and if they work?)