Thank you everyone!
I think we'll plan on changing the motors (we have to open the transmissions anyways) and check for loose wires. We also have some sort of a thermometer on our multimeters (how awesome is that

) so we'll probe around for hot spots. Also, not mentioned in this thread, some people on our team think that we may have bad victors. And since we have 2 empty victors on our robot, we'll switch the drive motor victors.
Al, thanks for your offer! I'll definitely look for you in Atlanta.
-Andrew