I'm looking for a free, preferably Mac OS X compatible 3D modeling and animation tool that is as bare bones as can be. I'm pretty much looking for a tool that lets you create and edit meshes, rig them, define animations, and export them. I don't need texturing support or anything. I want a tool that lets me make meshes that are just vertex and color information, rig up the simple meshes with a joint based structure for animation, define some animations, and export the mesh and contingent files. I'm thinking of developing an absurdly simple 3D game, and the software I know isn't free for commercial use, while the free software is clunky and I don't know it. Any suggestions?

What you sir are looking for does not exist. Some alternatives to what you asking for include:

Blender - Free, incredibly powerful, and incredibly clunky
Cheetah3D - US $129, mildly powerful, and incredibly Mac

I think those are the best bang for your buck with the price you want and the features you want.

Why thanks. I've already resolved to suffer through...erm...use Blender's clunky interface after reading up on some tutorials for simple skeletal animation rigs. I'll have to look in to writing export plugins to save things to my simple model format though...eh.

Sometimes I wish this was all still simple enough that you could write your own proprietary software on a whim to handle the tasks you needed :/