Hey I used to work in the industry - I can recommend Security By Design who ar based in Docklands. YOu are on the right lines of making sure it is police monitored - I see o value in alarms that aren't. I am dubious about CCTV - if you do go down that route I would say to make sure that the shots are very close as getting a decent shot, that could be used in court, in a wide angle view is next to impossible unless you use top of the range ???? cameras