Some some of the stuff I mentioned in the last video post about using Python. There's some very cool stuff out there to check out if you have the cajones to try to pull them apart a bit. Kudos to all these guys for making awesome stuff, THEN making it available to us all for free (for the most part)!
Hamish McKenzie - Zoo tools - I've mentioned him a bunch of times. Really great stuff in terms of tools and also on the blog. http://www.macaronikazoo.com/
CG Monks - Awesome toolset! http://www.cgmonks.com/
Mark Jackson - Red9 Tools - Holy moly! That's some heavy duty scripting stuff he's giving away! http://red9-consultancy.blogspot.com/
Morgan Loomis - http://morganloomis.com/downloads/
Michael Comet - http://www.comet-cartoons.com/
Brendan Ross - http://www.supercrumbly.com/latest.php