bank

So i came to college thinking I would go into accounting without really knowing much about the ibanking field and now I am trying to jump ship into banking( I know I have horrible timing). I'm currently a junior majoring in economics and accounting at a non target. I'm have been applying my ass off to the different banks for a summer intern position, but I don't really have any banking experience. I have had a accounting internship for over one year but I don't think that will really make me a stand out. There are not a lot of boutique banks in my area and the only one's that offer internships are unpaid internships which really isn't a option for me. So i guess my questions would be is it really worth it interning at at a boutique bank without pay for the experience on my resume?

As the standalone bulge bracket investment bank becomes a thing of the past, what will be the affect on the prestige and position of the dominant middle market banks (Lazard, HL, etc.)?

What are my chances at a top MBA program? I'm currently a senior at a ~100 ranked state school.

Projected Final GPA: 3.97

WE: I worked at a nonprofit in Washington, D.C. the summer after my freshman year (all expenses paid). For the summer after my sophomore year I worked at a mid-market commercial bank as a lending intern. I was offered a job from the bank that I'm thinking about taking.

Perks of resume: I'm graduating in 3 years with ease. The University pays me $5000 per year because of scholarships (National Merit, Byrd, etc..). The only EC in undergrad was one year as President of the largest student organization on campus.

GMAT: I'm a good test taker and made a 33 on the ACT in high school so I don't think 750+ will be hard to do.

Is it possible to work as a credit analyst in the middle-market lending group for a few years at a regional bank and jump to a top MBA?