Working in the chemical engineering area. Hard science + all the cool technologies you can read on HN => Fun + money. Usually a contract starts at $15k (2 weeks) and goes up to 2 months of work on average. I always advice people to go the hard science way if they like computer science, because there is a really big big lack of people being good at both. I should write about it.
I've thought about going into a hard science industry but never did anything about it because 1) I'm not really qualified in the science side, my skills/experience/qualifications are in computer science and 2) I don't really know how to get started.