The main parts are a RaspberryPi, some Adafruit stuff, and a motor from pololu. Also, I put all the parts in a package that you can get here:
http://runmyrobot.com/kit
This is exactly what I have been looking for, reasonable hardware that I can put together with a drivable car/robot that I can have fun programming. I will watch your video and probably order your kit. I think my son could really enjoy learning with this kit.