Continuing with my slow build-up of 28mm mythical Greek forces for OGAM, I have just finished up three 28mm centaur archers from Black Hat Miniatures. I now have enough Greeks and associated monsters to easily run a 1200 point game, or even two 800 point forces to fight against each other if the need arose.
In game terms they are a fast moving shooting unit which fights as well as most melee units. However, they do carry the extra risk of being drunk as often as not. That makes them more powerful, but much harder to activate.