Won't hit the wallet too bad really although there have been a couple of surprises of course. My lighting scheme will be the least expensive for start up and running on a tank this size, and I am researching using blue LED arrays.
Cooling will be fairly simple with a heat exchanger and coffin freezer filled with anti-freeze & water, so that will not be a very big drain on electricity like a chiller.
I got the tank very cheap and it will take some work to polish it, but labor is free! The pumps came with the tank, as well as a good portion of rock to start the reef off.
The only other big expense will be controlling equipment, most of which I will make myself. The big question is whether to go with a Neptune controller, or buy individual controllers & timers.--J