Awesome, you're redoing the lighting! I was coming back to tell you that I had to give up playing in this world because it was too dark for me to tell what I was doing half the time. For example, I had taken a sim to the cemetary at night to tour the mausoleum and when he came out I told him to harvest the life fruit plant. I was totally surprised when he turned around and then started harvesting from a tree. It was so dark that I had not even seen it. Additionally, I couldn't even see the mailbox in the front of my sims home for him to get mail after working an evening job.
EDIT - Oh, I forgot to say thanks for considering updating the shimmering lot so it is useable and letting us know that lots could be added. However, if I add lots it will have to be with the world editor because I don't use CAW. That's not really the optimum way, imho, so if you feel inclined to add an empty lot or two to the second version for growth purposes, I certainly would not complain :)