How deep is your tank Adrinne, and how much were you willing to spend on lighting alone?
With T5 HO (I favour the glo ones - made by hagen - fluval) the hoods are to be bought separately from the tubes, but they are a sound investment.
Each 4ft HO tube is 54W and there is 2 of them in each fitting = 108W of power consumption.
I run 2 of the 4ft hoods on my tank, 2 tubes @ 18000K and 2 @ 10000K and the plants and especially the swords are flourishing.
the 18000K tubes are expensive, and are about $60ea.
the other spectra tubes are far cheaper, and I think the 10000K tubes are like $30-40 each.