My new lights... I think...

[Kurt_Nelson]

Take a look at Kurt Nelson's gallery he has the same lighting fixture on his 46g and some nice looking corals. With your tank being only 37 gallon you would have stronger lighting than him and I with that fixture....

Well since my name is being bantered about, figured I'd chime in!

Agree with ccapt... while watts/gallon is an OK guideline, I wouldn't bet the farm on it. The difference between 4.2 watts/gal (196W on a 46g) and 5.3 watts/gal (196W on a 37g) is pretty negligible. Too many variables to really say one has more light that the other. I wouldn't think you'd be too successful with 5.3w/gal doing SPS.