Installing Your Own Home Security System

INSTALLING a security system has long been considered the domain of professionals — uniformed men and women who build an electronic shield around your home and monitor it from a command center.

At least that is what the commercials always seem to suggest.

But a new breed of home-security systems promises to be simple enough to install without any professional help, cutting the cost of traditional alarm systems by taking advantage of technologies like wireless connectivity and battery-operated sensors.

http://www.nytimes.com/2010/07/01/garden/01hometech.html?src=me&ref=general