before i got windows xp, i used "science" and "sixties" from MS Plus. You use your own background and it warps it, rolls a glass ball over it, or other things. Not the best for preventing burn-in though.
Yes I was looking for something with some action to it. I have a Cadillac CTS screensaver and thought Pontiac would have one but they do not. I may purchase software to allow me to build a custom screensaver.