If you are not planning on having any corals, then lighting is not too critical. you really only want something that is asthetically pleasing to you and to support the corraline algae on the liverock. N.O. flourescents won't do the job so you will probably want to get a hood with VHO
's or powercompacts. And as far as asthetics go, most people prefer to supplement their lighting with actinics and moon lights. I did a quick search and I found a few 72 inch power compact hoods in the 350 to 400 dollar range.