I have four 80 watt T5's on my mine which gives me just under 4 watts per gallon. Two daylights and two actinics. My T5's run pretty hot. I'm having to use a fan blowing across the top of the water to keep things cool during this heatwave.
I'd start off with some softies and get the tank well established and maybe try some stonies a year or so down the road. There are lots of pros and cons for every type of lighting system. Each type of light will work if you get the correct intensity.
7 month old 100 gallon. Hopefully on my way to a great reef tank. A few small fish and a few small soft corals. T5 HO Lights and ro/di unit.