Thanks for all the responses, I think I have a game plan.
I'm going to get:
A magicshine headlight
A planet bike taillight
2 Spoke lights
A reflective vest
This will be for starters. My commute is only 4 miles (although I'm sure I'll take the long way though, I'm doing this for workout purposes too), and most of it will be bike path so I'm not worried about cars. I'm more worried about hitting nocturnal creatures on the paths. Also, I'm not worried about the bike getting stolen, I don't work downtown and there is a bike rack at work, I always lockup and the other bike commuters never had a problem there.
Thanks again for all the help everyone.