Looks really cool. Very well thought out, and I really like the aquascape. One thought before it gets wet. Would it be possible to return the SM250 and bump up at an SM300? THe SM250 will be enough I think, but you always want more, and the price difference isnt that big. Also, not sure what you are planning to keep, but you'll definitely need more flow if you want to keep SPS. I'd suggest 4-5 vortechs.
Looking forward to seeing this one come along. Especially curious to see how the AI lighting works out for you. Oh, which brings up one more thought...have you thought about going with an RKE instead of a Profilux since they have a module designed specifically for the AI lights?