I've had the CMUcam turret assembly sitting in a box for the last week (ordered from http://www.robot-electronics.co.uk/) waiting for certain missing tools to turn up. They turned up on Wednesday, but a party last night delayed the initial assembly. I'm also waiting on the CMUcam3 module turning up from Seattle. In the mean time I thought I'd get it built and see what size it built to. The size certainly shows that the Pololu chassis is going to be too small.