In terms of CCTV, what I've found over the years is that you have to approach this investment with caution. What good is it to spend upwards of a couple hundred dollars for exterior surveillance if they are exposed? There is no logic in that. A robber with a $2 can of spray paint can easily blind your cameras and effectively nullify its usefulness. I got a simple fixed camera, integrated with alarm.com which allows me to view video through my smartphone. Very easy set up. Here's the link to the site I got it from:
http://www.prolinkprotection.com/#!fixedcamera/c1wsl
Hope that helps. Also, it's best to install your cameras inside looking out a window. That way they won't get damaged or vandalized
