Should I go to acting school?

I’m currently a freshman at a small liberal arts college in Pennsylvania, and while it’s a great school, I’ve begun to believe more and more that an intensive academic program isn’t really my path. I’ve had a deep love for the stage since the middle of high school, though I’ve been pretending to be other people since I was old enough to walk =] The point is, I really can’t imagine anything better than working on a play all day, and have never found anything I enjoy as much as working on one.

I had never seriously considered the possibility of acting school until recently, however, when a friend of the family mentioned it to me. The more I thought about it, the more the idea made sense for me. The problems I now face, however, are that I know very little about the world of professional acting, and that I’m keenly aware that graduating an acting school would result in a far narrower range of options than I would have with a 4-year University degree.

The schools I’ve found in the US that seem the best are Julliard and SUNY Purchase, but the one I’ve really set my sights on is the Oxford School of Drama, in England. Is pursuing professional training a rash move? Am I foolish to seek a place in such incredibly selective top-tier schools when I have no real training save a love for the theatre and two freshman-year acting classes? How does a degree from an English arts school translate into US terms? I realize that you don’t know me or the specifics of my situation, but any advice you could give me would be very helpful and very much appreciated.