yup, its the motors that are dead. but ill poke around at the board to see if something is shorted or something.
edit: the board is fine. no shorts, correct parts are used. its the motors. in case you want to know, im using the same board engadget used:
http://www.electronics-lab.com/projects/pc/008/
edit 2: i measured my motors, and they seem to be about 60mmx60mmx75mm. i guess they were nema 23's.