Reply to Motorized faders?

I was just sitting and playing around with my VCI when an idea struck me. Is there any DJ-controllers with motorized faders and would it be possible to install them on a VCI?

My first thought is that youd probably install a seperate "brain" for the faders. Assuming that you dont need a motorized crossfader, this would give the user 4 analog pots (since the pitch- and volumefaders wont be used). That, my friends is a second FX-bank!

Any ideas?