I have tried praying those LED gods dont listen! I honestly just think that LEDs are out of reach of the avarage reefer for now. ( large tanks) There is one comming out this spring that looks promising called Ecoray. Not a whole lot of info other then what the article says.
They say its close to a 250w MH $299.99 for a 64w panel you would need 1 panel every 18" I am going to watch these as I want it (leds) for my 75g. Sounds to good to be true