Comment Do It On The Cheap (Score 3, Informative) 280
I would highly recommend you take as much as possible at community colleges, paying as you go. The universities in my state (New Mexico) accept community college credits very, very well. Slightly before you've exhausted the community college course load, apply to, and get accepted into, a bachelor's program in some sort of engineering (not all science degrees are equally marketable.) After you're accepted, and have completed a year or two's worth of marketable engineering courses at the community college, you should be able to get an engineering internship and continue to pay cash for classes. These student, engineering, jobs (in my state) pay more than English degree professional jobs do. I've seen this approach work with computer science students.
My state has extremely inexpensive, or free, tuition for residents and access to a huge amount of engineering resources (two national labs + tons of military bases + the initial stages of a tech start up scene) as well as dirt cheap cost of living. I realize this approach might not work well in other states, but that's the approach I talk with people about. I'm working with a guy that studied music, but is getting into web development. His goal is to get accepted into a master's program, and spend an extra 2-3 semesters in it taking undergrad courses. If he can get funding (as a research assistant, or teaching assistant) that will be a great approach too.