From your description, perhaps this is what you are looking for: Hague Pan & Tilt Power Head. Shown on top of the page on the following link:
http://www.haguecamerasupports.com/p...er_heads.shtml Click on the ad to show more details.
There are two versions available the normal and modified. I have the one of these and it works well. I use it purely for photography. I had seen these before and wanted one, but it took me a few years to track it down and as far as I know, the only place they are now available is from Hague Camera Supports in England. I ordered mine directly from Hague. It fits to any standard tripod and it comes with a hand controller.
Cheers Peter