Just read "Ahead of the Curve" by Philip Delves Broughton, an account of his two years at Harvard Business School. Good book, highly recommended. He was a journalist before deciding to go to business school, and ended up with mixed feelings about the experience -- appreciative of the classmates and the people he got to meet, but not so excited to become an i-banker or management consultant. Not entirely dissimilar from my law school experience. Check it out if you're thinking about business school, or just curious about it.