LightingScience of Aquatic Lighting - Aquarium lighting is essential for healthy aquatic plants. Discuss proper aquatic lighting for your plants and fish here.
5 32W T8 tubes on either side should light it up nicely. I think anything in the 1-2WPG for this size tank would work nicely (at water surface level). Metal Halide would probably be my preference however, using pendants you could probably get away with 3 pendants in the 175-250W range. Cost would be very similar to CFs if you can build the pendant or similar housing for them yourself.