if you have 2 year off to commit to a job, some other good career choices besides what's already mentioned:
-research assistants/associates
-life sciences management consulting
-healthcare reimbursement/finance consulting
-healthcare IT
-pharmaceutical sales
-social work (teach for america, americorps, etc.)
-non-profits
a lot of these jobs are hard to come by in today's economy. my suggestion is to network proactively and early -- also, make sure you are on top of the recruitment workshops/deadlines if any of these types of companies come recruiting at your school.