automatic amp rack?

Hi, I am planning to build a automatic sliding or rising amp rack for my three amps. I've been searching for companies that make these components but no luck. I've seen them being used in shows and competitions and are pretty sure somebody out there must know where should I start searching for these 12 volts actuators and sliding motors for these application?

Thanks for any inputs and feedback.

Select Products are the people to go to for actuators when it comes to car audio

http://www.selectproducts.com/frameindex.htm

http://www.selectproducts.com/ftpfiles/actuators.pdf

how do you want the amps to come out or lift?

also with either of thoses....actuator or a motor...your gonna need fabercation skills like no other to make it look good....

if you dont...get some tracking for like heavy file cabnits and then set them up from there...