Electric Sheep is probably the most advanced screen saver ever developed. It was written by Scott Draves as part of his MIT Doctoral Thesis. Your computer composes small mpeg files, then uploads them to the sheep server where they are then downloaded as a part of a "flock" and displayed as a continuous mpeg movie. New "flocks" are downloaded and then used as part of the screen saver ...
Homepage --==> HERE
Download it --==> HERE
These are a few static pics from the latest "flock" ... Enjoy!