Honestly it does not matter what you do.
The job is quite simple, buy low sell high, sell high buy low.
Some of the best traders I know(in the words of Gordon Gecko), don't know the difference between preferred stock and livestock(they got shitty fundamentals), and they make shitloads of money.
Trading is all about timing and experience, at least for intraday traders that is.
You might go for a finance major to build your fundamentals or Science major for the quantitative skills, but trust me what you learn in class won't help you much in the trading pit. The market can be irrational and drive you insane, I've seen rallies on bearish news and sell-offs on bullish ones, unintelligible convergence and divergence, total correlation to inverse correlation.
If you want to become a good trader, start by opening Candlestick Charts everyday and make paper trades. Try Brent Crude, the market is never dull. You will learn a lot more about the market than you will ever do with a PHD in Financial Engineering(no offense intended to the PHD Quants). There are also lots of fantasy trading game online, sign up.
Do that everyday until you graduate and you will land a trading job, guaranteed(and wave your social life goodbye).