A brilliant tutorial, I think, with video about motors ad microcontrollers from nerdkits.com. Learn about how a motor works, EMF, use of flyback diodes, control a motor from a microcontroller, PWM etc.
This is one of the main part for my contribution of the LMR Dagu contest. It looks like a small camera and yes indeed it is a camera. But this camera didn't give you a video or picture output. Mhhm, than it must be defect you may think.
My next robot project will be a tank based plattform, but first I need to finish YAABR. After I see this spy toy at Amazon I need to buy one. It is a very good fabricated toy and also very pricy. I paid 50€ for it at myby.com, at Amazon you get it for 56$. For that money you get a tank platform with wireless video camera (320x240 bw, 2.4GHz) and microfone, a RC control (27MHz) and a head-up Display with LCD screen and ear phone. Not bad.