I like the coralife fixtures especially for the $$. I made the mistake of NOT planning ahead on my tank and ended up buying THREE different fixtures so take your time and plan WAY ahead. If you have to wait and save a little extra to get the one you want so be it. You'll be money ahead in the long run.
also buy USED if you can (that was a GREAT suggestion
prow) but keep in mind that the bulbs MUST be replaced every 6-12 months of the spectrum will shift and you'll start growing algae like crazy and your corals will suffer. I have a 24" coralife 130w unit on my 10g (20" tank) that's SWEET! Yes it lights up the entire living room but My corals are thriving. Zoas are spreading like crazy... mushrooms and popping out like mad... rics are doing GREAT!!
good luck and hang in there. It gets better and better!!
Allen