Wow. Just watched this video, which I found via Spidey, who got it from dualraven's site.
“Specially created for Harvard biology students, this eight-minute computer-animated film reveals the beauty and hidden cycle of intricate organic mechanisms at work at the molecular level. The focus is on how white blood cells respond and react to external stimuli. Everything that you see in this clip, the unusual orchestra of Nuclei, proteins, and lipids, are actions that are taking place right now in your body, in every individual cell. This includes one of the most surprising sequences – the motor protein plodding along on two pod-like feet along a track, carrying behind it a sphere of lipids. As cartoonish as that sequence looks, biologists report it’s an accurate rendering.”