The lab I work at came out with a new microcontoller called the Qwerk. It has 16 servo outputs, 4x motor drivers, 12-bit a/d convertors, as well as a bunch of digital I/O's. Since it is running Linux, it can support USB devices like a webcam and a WiFi dongle. In this video I am using a program that connect to the Qwerk over the internet, displays what the webcam sees, allows you to control a pan/tilt system for the webcam, and drive the robot using two motors.
Since the motor drivers can only supply 2 amps, I added a sx microcontroller into the mix. The motor controllers drive a set of small motors with encoders built in. The sx then reads the encoders and translates that into RC pulses for the RC motor controller.