Summer Internship 2015

I am a rising sophomore at a non-target school, but with a decent amount of knowledge in finance. I had a little internship at a local financial advising business that was non-paid, but I am looking to get into IB on Wall St. by senior year. Just want to gain some insight into what it takes for a sophomore to get a summer internship at a BB preferably in IB? Would it be better to target Chicago or NYC, and if I interned in Chicago would it be difficult to eventually move to NYC and get a full time position there? Any opinions/comments and suggestions as to what I need to do to raise my game would be much appreciated. Thanks a lot in advance!