[HHI944]

In the next month or so, my next door neighbor will be returning from Connecticut.....where she's been incarcerated/under supervision due to a conviction for aggravated assault and burglary (she and some friends broke into a house, beat the occupant with a baseball bat then stabbed him in the back)

So....I'm going to put in a camera system that records to a DVR that I'll hide. I see that most of the available off the shelf stuff will send you alerts based on your preferences when they detect motion.
Any recommendations on brands? I think 4 cameras will do the trick for my needs.
Is there any way to hook one of these systems up to a siren so the siren goes off when it detects motion?