I've thought about this...what would I do differently if I could go back and re-do the education. My business and law pieces of paper on the wall are sure going to be pretty useless soon. What would I really do if I had the time now...study organic sustainable agriculture, with a handy dose of trade knowledge on the side, like electrical, alt. energy, mechanics. If it had any appeal to me, I'd consider medical, but some people just aren't cut out for that. Dirt, now that's appealing to me.
But, I think your problem is time. If you believe like many here do that the muck is going to be flying soon, then start with something that'll be useful quickly, since time is short. and I don't believe you have two year to waste wading though undergrad, useless, stuff right now.
Or, if you have the $$$ in your possession, park it in gold/silver for a while. If for some reason our predictions of doom don't occur, cash it in later for a tidy profit and then pay for school, with money to spare!