Awesome about the university! Where you headed to?
I've been at University of Illinois-Chicago for the past 3 years for Mechanical Engineering.
I think Panasonic/Leica has something similar, 25mm if I am not mistaken.
I am wondering how well they compare against eachother. I notice my 50mm macro is a little bit too wide inside. Another prime would be a good idea in future.
I have a feeling the Panasonic is going to be sharper, but the Sigma has been pretty sharp. I can't imagine the more than doubled pricetag of the Pana is going to be worth it.