I'm not aware if it is possible to tap into existing CCTV cameras, perhaps someone else can tell us that, but I do have experience with the web cam for the iron bridge. That was funded by the Heritage Lottery money and cost several thousand pounds and would be prohibitive purely on a cost basis. That was a security system and was quite high quality. I don't know if there are cheaper ways to do it but we would be happy to link up with any interesting proposals to be able to make this available from the Marple Website.