Joel Spolsky (of JoelOnSoftware fame) is well-spoken and often has a lot of good advice for programmers.  This recent essay gives advice to college students on what to study.  His advice consists of:

  1. Learn how to write before graduating.
  2. Learn C before graduating.
  3. Learn microeconomics before graduating.
  4. Don't blow off non-CS classes just because they're boring.
  5. Take programming-intensive courses.
  6. Stop worrying about all the jobs going to India.
  7. No matter what you do, get a good summer internship.

If you want to find out his reasons, read the whole article.