I've been playing with the various VirtualDub filters listed here. My interest so far has been in cleaning up various types of noisy video. For animation, I think Smart Smoother works pretty well, and for noisy VHS or TV clips fxVHS seems to work well too. I haven't found a good filter for removing dust and hair specks from film captures. I also haven't found a filter that will stabilize clips with random 1 or 2 pixel horizontal shifts (again, from film). Anyone else know of some good filters?