Here's my story:
Spent my undergrad working toward a career in biomedical research and amassed a few impressive research. By my senior year I had lost almost all interest in the field and started getting interested in my personal portfolio and a career in S&T. Of course by senior year it was too late to change my major or get a peg on my resume.
So I applied and got into the well-regarded economics program at a semi-target. I will complete a second bachelors in economics there by Fall 2010. That will give me the summer of 2010 to still be considered an undergraduate student and, therefore, be eligible for SA positions.
Here is my resume that I plan to use in Fall recruiting. Please be tough and as honest as possible.