Site looks great and I have to second the comments on the "
Do Differently" page. It would be hard to disagree with anything you wrote. While I used direct-shipped live rock from MI, and really enjoyed all the interesting life that came out of it, I do feel I got "lucky" in that no real pests came along with it.
My biggest lesson was under-rock flow. In my next system, the rock will not be in contact with the bottom of the tank, but mounted on short rods. The amount of detritus that gathered on the bottom of my tank was shocking. As a side note, I put in 750 lbs. of rock and got out about 500 lbs. when I broke it down.