I have a question, where 2 people had really good answers. Neither was a "direct hit" for what I was looking for, but both sparked good thinking. Is there a way to split the 200 point bounty to them? Or must I distribute the bounty to a single "best" answer?
There isn't, you have to pick one answer. In theory there should be a single post that completely answers the question, and if there isn't somebody should write one; you shouldn't need to get pieces of the answer from multiple posts. See the feature request: Accept Multiple Answers or Split Bounty among Several Users