The lights you need are going to depend a lot on what type of coral you would like to keep. A T-5 fixture is always a good place to start with that sized tank. If you are just looking to keep soft corals, zoas (lower light) a 4 bulb fixture should be fine. If you want some of the more high light corals (SPS
- small polyp stony, among others) you will need to look for a 6 or 8 bulb fixture.
I can't really offer a good brand to you because there are a ton available and opinions very widely. I can offer two pieces of advice for you. First, make sure what ever fixture you get it has individual parabolic reflectors. Second, i personally would stay away from anything coralife. I worked in a fish store for a while and we got more returns and problems from their products then the other brands.
On a non-light related topic. I would strongly suggest getting your self a liquid nitrate test kit. Don't trust dip strips and don't trust your LFS
employees to know their thumb from their rear end about "normal" levels for your tank. It will help you keep a much better idea of how your tank level is doing and save you a lot of head aches in the end. There are other test kits you may want down the road but knowing your nitrates is very important.