Here are the LED fixtures I am going to be robbing for parts to make this new build. These pics are a couple years old now, but you get the idea.
This first pic is of a Current USA Outer Orbit fixture that I modified. I replaced the 2 x 250w metal halide bulbs with a pair of LED arrays housing 12 x Cree XPG (Cool White) and 12 Cree XPE (Royal Blue) on each heatsink (48 LED's total). I plan on robbing all 24 Cree XPG's from this fixture.
These next few images are of a another set of fixtures I made for another reef tank, I plan on using all of the XPG's and 24 of the Royal Blue LED's from these. I will also be reusing the fans on these fixtures as they push a lot of air, and run very quietly.