Halogens will only cook your tank and give you algae problems, they are not made for aqariums and will do you no good.
If you are looking for some good lights that you can keep any type of coral under look for Metal Halides, you have to get the kind that are made for aqariums though, the type at Home depot do not fire the proper bulbs, unfortuntely lighting is the one place with aquariums that you just have to bite the bullet and spend the money.