How do you know the choice you made is correct? Not counting hindsight..

Honestly I don't know and I still feel very unsettled by having to choose between interest and money.

One is a front office job that can possibly move me up to my ultimate career aspiration - investment banking.

The other pays 1k more a month (ouch!), not counting bonuses and other fringe benefits.

What would you do?

On another note, I changed my mind about enjoy my last semester; I can't wait to graduate!