a). Ever wonder what the big deal is with Python vs. MEL?
b). What is all of this Python Classing and PyMEL nonsense?
c). Why go to the trouble of using a complicated IDE?
The answers are in my talk from GDC last week. Hope it helps those ready to take the plunge into PyMEL and advanced Python development:
PDF: Power Python Development for Maya (6 MB)
ZIP of Movies: Power Python Dev Movies (51 MB)
Streaming Video of presentation HERE