I am finishing undergraduate in three years and I would like to go straight to a top ten business school. I know this is very ambitious but i am sure it has been done and I am willing to work very hard.

A little about me:
3.73 gpa at University of Miami, Fl and now transferring to Ohio State.
I need 120 semester credits to graduate and I have about 45. So technically I am in the middle of my sophomore year, but i don't like to use the terms freshman and sophomore, etc., because I am graduating in three years.

So mainly I am looking for advice on GMAT prep, on business school prep, on maybe getting experience for grad school.

I have an internship right now over the summer, two days a week where I work at no cost for a non-profit called BetterInvesting that has about 100,000 members in it. It is a branch under NAIC (National Association of Investor's Corp) Their website is betterinvesting dot org if you want to learn more (I'd post it but it wouldn't let me because I am a new member) I am working a their world headquarters in Madison Heights Michigan after only my first year in college under the accounting department and possibly marketing department later this year.

Under them, I will also have the opporunity to be a college campus representative and trying to start my own investment club.

Besides this I am wondering what else I can start to do to get extensive experience and build my resume. Clubs, fraternities, interests, etc.

GMAT-I am looking to take the GMAT soon because I want to devote the last part of my three years in trying to get experiences, internships, etc and i thought this summer might be a good start. Any recommendations? Good idea? Bad idea? I have had one accounting class and I am pretty good at taking tests, I got an 800 on the math section of the SAT.

Please let me know if you have any advice for me, thanks.

I think you're off to a great start tarzanman but here are two points:
1) Brown doesnt have a business school
2) I'd agree with method, you should definitely work full time for atleast 3 years. I'd personally recommend 4 years. Let me explain why this is important (I think I've said this elsewhere as well but nevertheless)
a) You need time to understand who are you, your likes/dislikes and interests. Plus, entering the job market and working full time develops you as an individual in a way that university simple cant. Thus, when you go to b-school, you'll end up bringing something tangible to the table in terms of your experience.
b) Post-MBA, when you're applying for jobs, prospective employers will ask you what you've done so far and if your answer is "sorry, I havent worked anywhere yet but here... I've joined many clubs and done a lot of stuff". It has a much lesser impact and could go badly for you. Instead if you can say something tangible like "I worked for XYZ firm, got promoted every year and in my fourth year even managed to lead a team of 5 ppl" then that tells them that you've got some great real world experience and that you could handle a working career.
c) You can save up some money!! Living costs during the MBA program are going to be quite high so use that time to build your coffers.

I hope this makes sense.
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