I haven't thought about it, but I am working on bidding on some old police equipment if you are interested. They will be going to a more modern version of our "in car" cameras. Ours now are still taped, whereby the new ones will be digital. I will bid on the old ones if I can land them cheap. These enable you to turn them on and off, and you can mount more than one...if this materializes, I will post up what they have...and prices...these systems sell in the $3k range...I think I can land them for a few hundred a piece.