go for discus...you'll absolutely love them. They will be a little bit more work than a standard cichlid, but the end results will be awesome. The key with discus are the water changes...50% 1-2x a week. The more frequent, the better. Yes, you can get by with less, but you wont get good results...sick fish, stunted fish, fish that always hide, poor shapes, and poor appetite. Do some research on a few major discus specific forums and find out for yourself. Discus arent as hard as everyone thinks they are. As long as you meet a few of their requirements, they are a joy to have.
-Ryan