I am in the process of converting my Fowlr to a reef. Besides getting more LR, you should deffinitly get lighting. Metal Halides are the best, but because of the pricing many people go with VHO's or PC's. And you may want to get a protein skimmer and a refugium. But, if your a low maintenance type of guy such as myself, I'd say deffinitly go with the lighting and more LR, and then take your time with buying the rest. Just make sure your water params are good and your lighting s good and you ll be fine.