I wouldn't to FOWLR unless it is a very large tank and you like fish that are not reef safe. What I have seen happen over and over with my clients and customers is they start with smaller tanks like that not planning to go reef. Well two months later when they have all the fish they can have and they see those coral frags it is just too tempting. Inevitably they try a mushroom and zoanthid, they do well, and they are addicted. Just plan on going reef eventually.
Reef tanks do cost more to setup, but craigslist and many other online places can save you a lot of money on the rock, lighting, skimmer, etc. I prefer to see all livestock with my own eyes first so I actually know what I am getting.