pandw,
If you scroll up about 24 replies to April 7th You will see the exact blueprint-Diagram I used from Steve24944.
Everything was purchased at Radio Shack for about $9.00 per setup.
Since then I searched for better prices and found DigiKey had the best price for the Bridge Rectifiers, China for the Capacitors, and Radio Shack for the Relays.
I am planning on extending my layout someday so I purchased 25 of each piece shown above.
I printed the diagram from Steve and followed that for 100% working and smiling.