Good guesses, that's exactly what I'm planning on doing. I'm going to use Bluetooth to transmit data back to a computer, have the computer make the decisions, and then send commands back to the bot. I had a 6DOF IMU in there too to help w/ dead reckoning. Instead of trying to code up all the logic on the pro-mini, it would just collect the data and transmit it. It'd also handle commands coming back from the laptop (left motor 50%, right motor 25%, turn weapon on, etc).
I've played around with the motor controller a bit, it seems to handle the maxon motors fine, albeit with no load. Once I get a frame in place I'll do some better tests. I can swap in other controllers if that one proves too puny.
So I'm leaving out the sensors and IMU on this iteration, but am going to try the bluetooth/motor controller/pro-mini on this iteration of Angry Accountant. Since I have antiquated FM transmitters/receivers, this seemed a more interesting route than just buying a new 2.4ghz radio. Should be cheaper/smaller too, if things work out. I picked up a SparkFun joystick setup, so that'd also plug into the laptop for this iteration, the laptop would do mixing, and broadcast to the bot.
Pete - Team Cosmos