Health insurance is teh rox0r. :thumbup:
Seriously, you should always have it if you can. I can go to basically any doctor and pay 10 bucks. Prescriptions are 10 bucks tops. Emergency room visits are like 40. Most health plans offered by employers are not that flexible, but my dad is the CEO of a managed care consulting firm so I get mad hooked up.
Not to say that you will need these things, but it's nice to have.