All double ended stuff is HQI. The right ballast for those Bimini Sun fixtures in the ANSI m81, not electronic. The great thing about any DE fixture is that the super-awesome 14k Phoenix is available to use - this is a great looking bulb that is not windexy, has great pop and great growth. I run 14k phoenix in my DE fixtures - corals just look good with no trick lighting, photos are easy to take and success is easy. They bulbs are among some of the cheapest out there too - rare that some of the best are also the cheapeast (Instant Ocean salt mix).
Sorry, I was doing 54w math and forgot this is a 36" tank.
The Hamilton T5 and MH fixtures are just a more modern equivalent of that used PFO. Cost is really the only difference. PFO stuff were built like tanks. Hamilton stuff is built like tanks. Both are good.
A pair of 150w (double ended) or 175w (single ended) MH over a 40 breeder is plenty. It will keep electricity down, heat won't be an issue. Unless you wanting to keep the most light-loving stuff, then 250w would probably be a waste. Remember that well-chosen MH setup is not any more or less efficient than a different type of light with the same output.