I wanted to add 39 or 40 watts of lighting to my tank. Currently I have two 39W ATI T5 VHO bulbs on a retrofit kit for my custom hood. Basically, I want about 4w per gallon so I can start to venture into SPS land. As I said I have a custom hood that I would have to work around with any type of lighting, so ease of installation comes into play as well. What do you think would provide the best performance:cost ratio? I was thinking of doing and LED setup to supplement my T-5s, that way I could have lighting that I can dim and simulate sun cycles...Any advice would be great.