If your ultimate goal is sps, dont waste money on something youre just going to have to replace, do it right the first time, save your money and get a 150 watt halide settup, eventually, that 10 gallon will get crowded once the addiction takes place and youll want to get a larger tank. 150 watts of metal halide would be good on a tank up to around 30 gallons or so depending on dimentions. Take a look here...
www.hellolights.com