@umbra21 - Yeah, but you really have to think about how valuable your stuff is. Right now I don't have anything worth the effort for someone to watch my house for more than a few hours. I live in a dump and I buy most of my stuff secondhand or from WalMart.
And that's pretty obvious just from a quick glance at my house. I can't imagine anyone bothering to break in, particularly if I have a security sign, so there's no real need to get any home security devices.