RT Series
The RT Series robot will be a 5' tall robot.  It uses two geartrains from a Power Wheels ride on toy, and two Parallax HB-25 motor controllers for motor control.   An Arduino currently serves as an interface between the Acer One netbook (the same one on Geoffrey), and the motor control.
Eventually the RT-01 robot will be jam packed with processing power and sensors.  Currently slated is.

• 1 Microsoft Kinect w/ depth sensor, RGB camera, and 4 microphones
• 4 other web cameras (2 in the eyes, 1 in the back, and one pointing down to the ground to track motion)
• 1 speaker unit (located in the "mouth" area
• 8 HC-SR04 Ultrasonic sensors
• An array of bump sensors (amount and kind tbd)
• 2 microphones located on the sides of the head.

For processing power.

• 1 - Intel Core processor w 1 gb ram, 250 gb hdd
• 1 - Amd Triple Core processor w 4 gb ram, 200 gb hdd
• 1 - Arduino Uno @ 16mhz
• 1 - BeagleBone Black w ARM Cortex @ 1 ghz, 512 mb DDR and 2 gb flash
• 1 - TI MSP430 @ 25mhz.
• 1 - Lego Mindstorms NXT brick
• 1 - Lego Mindstorms RCX brick
• 1- Core Duo Android Tablet @ 1.2 ghz

These processing systems will be connected together to provide modularity.
The system will be open source, and both the hardware and software process will be documented for replication.
More pics and video to come, but here are a few.