Another poster suggested this thread: Did you (or do you) want to be a doctor?
I never did, but since I've been in nursing school, I've begun to think if I were younger, I would think hard about it. I prefer the nursing model in many ways, but noticed in careplanning that I found it tough to focus on nursing diagnoses and not get all caught up in the medical ones. Of course, there was a time when a nurse was just about the last thing I could imagine myself being, so I'm learning to never say never.
I do think nursing might be just about ideal for pre-med. A lot of docs could probably profit from seeing the other side.