I hear ya about da reef head! A slippery slope indeed!. Generally speaking, I would say think about the future when ordering a light and be sure you do not end up having to upgrade down the road because you saved a few bucks on a lower powered light today.
I have the Nova Extreme pro (6 x 54W) on my 55 long and my anenome, SPS, LPS, softies, all seem to be doing well. Pretty good price about $340, shipping included.
My Mother called me today before I had a chance to call her and wish her a happy mothers day! I told her her kids should call her, but that's just the way she is. Love ya Mom!