if i were to make that a cichlid tank, i would probably add quite a small group as they are more territorial/prone to fighting etc
Heavily stocking cichlid tanks and making up for it with extra filtration is the best idea, as they are aggressive and having lots of fish together deters them from picking on one particular fish. This is the best way to keep them all alive as otherwise individuals tend to get bullied.
When doing this you must provide plenty caves for the fish to hide in. This is critical for most cichlid tanks.
Actually, on that note, i had a Trigon full of African rift Lake Cichlids. Stunning. Just an idea for you Adrianh33.