Lighting Question

[Agranized]

I'm going to try and set up my first planted freshwater tank and need a little advice on lighting requirements. My aquarium is 30" deep and I'm just looking for mainly low light plants to fill in the landscape and provide refuge for fish. I am wondering if T5's would do or T5 HO's or do I need to go the halide route? I'm leary about halide's as I'm running an acrylic aquarium and the heat aspect is worrisome. How many watts?
Ideas?