Hamilton was on hand at the Global Pet Expo to show off their line of LED systems that can be retrofitted to existing canopies or used on their own to illuminate your tank.  Coming in 12-48″ lengths, you can pick either a blue supplement color or a combo of white and blue that comes in at around 12k.  They sell for $110-$200 each depending on the size.  The Kona line of lights is available now from Hamilton and other online retailers.