I'm also building a 40B. Do you mind if I ask you for what fish you have? I'm not quite sure what I am going to stock mine with (at least 1 clown for sure)
It would appear to be a pair of ocellaris and a yellow tang (( which I would never recommend for a 36 inch long tank )).
For my 40 breeder, I have a pair of Percs, orange stripe goby and a venustus dwarf angel.
It's going to be insanely cool in about a year. One thing I have a hard time doing is leaving things be--I like to tinker. But time, is what really brings a tank into its own and yours has a great start.
Do you ever have any issues with banded coral shrimp going after the fish?