Thanks, wayne, for the suggestions. I downloaded the trial of Cognito, and I can't figure out how to make it do the "triggered" movement on the subsequent dials. Is there a way to have that kind of timed -- rather than constant -- motion with Cognito?

I also downloaded the trial version of Carrara 6, and could upgrade from 5.1, but don't understand how to change angles to achieve a loop-able 360-degree rotation. How would I accomplish?

Thanks again.