I am a fan of domotica stuff, everything i can automate in my house like my lights or other stuff. I have led lights in the house, motion sensors data readings, remote door openings and more. To check out all the geeks in this business i would suggest going through the www.domoticaforum.eu website. It hosts tons off information.

Also visit http://www.homeseer.com which is the program which does it all.