Stan,
I don't know about anyone else, but I would be interested in hearing a bit more on the DIY approach. I'm not up to the "let's light the buildings" stage yet but would like to consider options to optimize. I was considering using Arduinos to control building lighting. But would like to get better educated on options.
THanks for your post. Very informative. If no one else interested, I'm sure you have better uses of your time. Thanks for all of your posts. You and John make this site very educational.