Now that the motor is on its way, I need to carefully consider the controller. The problem I am having is that none of the controllers I am finding really suit my need. I need to be able to set an idle speed for the motor to keep the auto tranny happy, so I am considering building my own. I know the basics of a PWM controller, and I have an idea on how to build one, but I need to find some 400 AMP transistors and diodes. I will be making another visit to Radio Shack to gather the smaller parts I need, and will start on it.