Hi all. As you might be aware from my “Home Defense” thread, I’ve bought some of the cheapie GE window/door sensors. I’ve been looking around the Internet and I’ve found “do-it-yourself” alarm systems that are, uh, I guess the word would be integrated or networked sensors with some kind of “brain” monitoring them. Anyways, cost-wise they appear to be midway between the cheapies out there and the professionally monitored and installed systems by ADT, Brinks, etc. Does anyone here have experience with the DIY systems and their effectiveness? I found this website which sells these systems and much more: http://www.homesecuritystore.com/ Plus they have an advertisement for a company that can provide monitoring for these systems. Thoughts, comments, criticisms?