The tank add does not show the size of holes for your overflow bulk heads. Make sure you have them drill at least two holes for the overflows for 1 1/2 inch bulk heads and for four 3/4 inch bulk head return lines. The standard "reef ready" 1 inch bulkheads are two small and two returns is not enough returns. The four returns and the extra capacity of two 1 1/2 inch bulkhead over flows give you the option of not having to use any power heads in your tank. They are unsightly, prone to breaking and keep their motors cool by passing all waste heat into your tanks water. I agree with what Biffer has to say about your lighting choices. Choosing T-5's will be cheaper, but it will severely control the placement of coral in your tank and severely limit the amount coral grown in different parts of your tank. Do not get VHO lighting. Reeffreak is the person to talk to about lighting for your tank if you do not want halides. Some corals and clams you will not be able to practically keep. Biffer has the best line on RO filters. The Coralife is a good skimmer for its price and the 125 is a good size for your tank as it is a bit over rated, as are most. I would, myself avoid power heads and try to get all circulation from the sump return, and closed loop circulation lines. I would get as large a sump as what I could fit under my tank and still have room for one or two external return pumps. If you tell glasscages you want to set up a SPS tank without power heads, and that you want all circulation to come from drilled overflow holes and drilled return holes and that you want a 30 times per hour tank turn over set up, you would probably get a system that does 20 times per hour tank turn over, which is pretty good for a general reef tank, but more is better.