Nice tank equipment list. I am going to build a 40B. I am using LED's and it is going to cost around $450 for 36 LED's, heat sinks, dimmable driver, solder, thermal pads, wires, everything. I would look into it if I were you. Plus they last 50,000 hours. Replaicing 6 ATI bulbs every 10 months will pay off the LED's in no time.