They tried to break in while the family was home? Forget the cameras. Get a dog. Or better yet, get a couple of REALLY BIG DOGS.
At work, one of my responsibilities has involved certain aspects of security. I have called the police when people were on the property shooting guns. The police show up, look at the security tapes and ask, "Did you get a license plate number? No? Nothing we can do." The officer that told me that is now the Sheriff for our county. So then we have a guy breaking into cars in the parking lot. We call the police with a witness, a license plate number, and the whole thing on camera. What do the cops tell us? "Yeah, we know who that is. He is a meth head and is driving his wife's car. But we didn't catch him with the stolen property so there isn't anything that we can do." WTF?!?!?!?!?!
Cameras can be helpful to let you know if something interesting is going on around your property but they won't PREVENT interesting things from happening around your property. If someone is going to be traumatized on my property I want it to be the bad guy and not the wife and kids. Since I cannot be home twenty-four seven the next best thing is a living, breathing, intelligent, loving, family friend that I know would give her life to protect the wife and kids. She will be home twenty-four seven.
as always, YMMV.
2Hut8