Home Automation Links:

1. Personal web site: RS485,X10,Solar: Kellee Crisafulli
2. Online Store: Home Automation Systems Inc. (sell X10, alarms, etc)
3. Personal web site: The Unofficial StarGate Web Site ,  nice site worth a look
4. Product web site for Stargate: JDS StarGate

PCB Layout Links:

1. Excellent source for PCB layout Information: pcblibraries