Anoher option you have is the Hagen GLO T5HO. The 2x24 T5HO should give you enough light even for plants that need a lot of light. You can check out the details here:
http://www.hagen.com/uk/aquatic/glo/index.cfm
http://www.hagen.com/uk/aquatic/glo/GLOT5_LightProg8_EN.cfm
I bought my 36" lights here for my 38 gallon tank and the plants are growing great. However, I'd recommend that you get the Giesemann lights from ReefGeek as they're cheaper there. The Giesemann lights are unbelievable. I have one each of MidDay and AquaFlora.
http://www.aquacave.com/24-glo-dual-t5-hobr-2-x-24w-lighting-systembr-by-hagen-2010.html
Good Luck.
http://www.hagen.com/uk/aquatic/glo/index.cfm
http://www.hagen.com/uk/aquatic/glo/GLOT5_LightProg8_EN.cfm
I bought my 36" lights here for my 38 gallon tank and the plants are growing great. However, I'd recommend that you get the Giesemann lights from ReefGeek as they're cheaper there. The Giesemann lights are unbelievable. I have one each of MidDay and AquaFlora.
http://www.aquacave.com/24-glo-dual-t5-hobr-2-x-24w-lighting-systembr-by-hagen-2010.html
Good Luck.