Im still in the planning stage, however I think I am going to do 96 Cree LEDS with a 50/50 ratio, and using dimmable drivers. I am putting this over a 60" tank (120 gallon). There isnt much to this DIY project once you know what kind of LED's your using. I am still researching Drivers. I know the 2 ive seen people using are the meanwell drivers and buckpucks. The biggest thing I need to figure out is the base to mount everything on and I would like to enclose it with some sort of protection for corrosion. Also, I have seen where people are using marine epoxy to mount the LED's, however I will be using the thermal paste and screw down method, that way its not so hard to replace an LED.