I slapped together a pretty nice home security system (with motion detectors) from this website. At first I thought the website looked slightly hokey....but they have good prices and were great to work with, not a bad forum either.

homesecuritystore.com

Mine isn't hooked up to email me anything....but I know it can. It's pretty cool too because you can control most of that stuff with x10.

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1981 240d - 135k - Arlene