That's pretty awesome.  I love to see working dynamics.  I think people don't animate, or make animations, because it takes so long and ties up the computer for so long.  I've created a number of animations, mostly from patching together BVH files and Poser pose files.  I'm working on two animated pose sets now, both starting from scratch.  It's pretty hard just to get a character to walk across the floor!

Do you know CQ2?  It's a flim out of Canada, I think.  French.  Your animation reminds me a bit of that film.

Well, keep up the good work.
Rªnce