I know my posts are all over the place, but I found this Maya API tutorial.
Chad Vernon is a Character TD, Studio Pipeline TD and Software engineer. He was previously a Creature Pipeline TD at Digital Domain. Here's a write-up on Chad at CG-Circuit.
In his blog, Chad has some very useful of technical resources that will greatly fellow artists and TDs, mostly in the areas of Maya and Direct X.
Do take a look at his Maya API related links at his site: http://www.chadvernon.com/blog/resources/