They've done studies on this already. Here's an article about this very subject on Dr. Spock's page. (He's a baby guy, not the guy from Star Trek.)
http://www.drspock.com/article/0,1510,6024,00.html"You don't have to be running for office to wonder how your name might affect others' perceptions of you. In one widely quoted study in the Journal of Educational Psychology, experienced elementary school teachers were asked to grade a set of paragraphs written by 10th graders entitled "What I Did Last Sunday." Eight different paragraphs were used, all about average in quality. Attached to these essays were eight different names: Four--Karen, Lisa, David, and Michael--were rated as desirable by students and teachers; the other four--Bertha, Adelle, Hubert, and Elmer--were rated as undesirable. The names were attached to the papers at random so that, for example, one paper that was labeled as written by Adelle one time was attributed to Karen or Lisa at other times.
Bottom line? You've probably guessed it by now: Although the teachers were given identical papers, with only the names being different, they gave significantly higher grades to the papers "written" by the students with the desirable names.
Interestingly, when the same experiment was repeated with college students as the graders, the name effect did not occur. Whereas the teachers had built up stereotyped expectations about children's names, the college students--who had no teaching experience--did not have these expectations and so their grading was not biased."
I grew up with the name "Colleen" which no one else ever has. It made me feel unique. But at the same time I felt like I had a stupid name since no else had it. I think that did affect me in a small way. Sometimes I wish I had a more mainsteam name, but now that I'm older I like my name cause no else has it, ever.