Just wanted to comment that... once you're involved with corals and anemone, it will not all that be simple and "easy" to take care of compared to fish only tank... Yes, there are easy corals out there like mushrooms and some polyps... but still, if you're looking for a real minimal maintenance work, fish only tank may be the way to go.
For the fish, I recommend a small percula clown or bi-color blenny which are pretty hardy and very peaceful. Damsels or dottybacks are hardy and small as well, but they can be pretty aggressive.