I'm wondering if anyone here uses any type of small digital video camera for inspecting wall cavities. Specifically, to reduce the amount of patching, I was considering buying one of those little "wireless spy cams" and attaching some bright LED lights to it so I could drill a fairly small hole and inspect the cavity before pulling wires, nailing into the cavity (to avoid plumbing, etc), filling with insulation, etc. Maybe attach the camera to a pipe snake so I can push it further up the cavity when needed.
Anyone else using this technology? If so, any advice on what to use or avoid (wireless, etc.)? I'd probably want to link it to my laptop so I could take the laptop to the wall area and view real-time while manipulating the snake.
Thanks for any advice, Keith