T5s are, in many ways, better than halides... they just don't have the reputation or distribution. If you put a par meter at the bottom of a 24" tall tank, the par rating for T5s is better. AND they use slightly less electricity, AND the bulbs last longer.
However, you can also grow SPS with PCs. I've done it. It's just a much slower process, and you basically have to feed them a lot. Which, in turn, runs a higher risk of mucking up the water (precisely what happened to me with some Montipora digitata, btw; I had it for a while, then a nitrate spike killed it). But it CAN be done.
But yeah, T5s rule.