+1 Advance preparation is everything in this case. You want to be the "have you heard this kid?!?!" guy and not just another Freshman wearing an Avenged Sevenfold tee-shirt attending Berklee on their parent's dime.
Connections are everything when you attend a major Music School. Obviously the better you are, the better your connections.
Several have us have stated this in different ways. This actually kind of makes a good case for Grad School at Berklee since hopefully the OP would be done with 6 years of preparation if he starts today with a really good teacher and really works in his 4 year program at Florida State, FSU or FAU. He could then hopefully get a scholarship/TA to Berklee and work his connections.
I just had an interesting conversation with Marcus Finnie (that's the drummer I was talking about in an earlier post who attended Middle Tennessee State University in Jazz Studies, not Memphis State). He said that Larry Carlton called him to do a one-off gig because he had heard about him and his playing from some fellow musicians. At the time Marcus had just had a surgery and couldn't play the gig. Larry said "That's fine-I'll call again." He did several tours with Larry as well as Take 6 and is going to Japan with Kirk Whalum later this Summer.
The point of all of this has to do with "making it" and "big breaks". If you work on your skills, become a great player, relocate to an area with a thriving Music scene (Nashville, LA, New York, even Berklee) with a strategy to keep things together financially and begin to play with as many people as possible word will get around. People will find out. If you're truly gifted like Marcus (go to
www.marcusfinnie.com and you'll see that he's a great composer and arranger as well as a smokin' hot drummer) people will notice you in the scene and word will get around. I've seen this work for over 30 years in Nashville with players like Avery Johnson (now in Atlanta), Keith Horne, John Billings, Victor Wooten and even in my own musical life.
When I was in college I quit a Rock Band that was just interested in partying, playing bars, and chasing groupies to really focus on school and my playing. To pay the bills I started doing Country Club gigs with a Trio and a Lounge Singer.
The next two times I was on a Rock Tour it was with Danny Tate (who had just written Affair of the Heart for Rick Springfield) and then Dickey Betts. I'm glad I took care of business and learned to play and play well so I was ready when the Real Deal showed up.
Here's another point from a working bassist who is also a Certified Old Guy. If you choose a career for the money you will be mediocre at best at it. Find something you love, really learn all you can about it, work hard at it, never stop learning and you should be all right.
Computer programming was the sure thing until it got outsourced to Bangalore. Financial and Mortgages were the sure thing until October of 2008. Owning a video store was the sure thing until I could go to my cable box and rent a movie or to my Iphone or computer and download one. Journalism was the sure thing until more people started getting their news and opinions from blogs and the internet and less from newspapers and magazines. Industrial design and engineering and a gig with one of The Big Three automakers was a sure thing It goes on and on.....
The only sure thing I've ever been able to find is to be a smart, motivated individual who never stops learning and has a bit of an entrepenuerial streak. Styles of music may change, but I've always noticed that it's hard to find a good bass player who can do all 6 things I put on my list. Whether they're 23 or 53 they always seem to be working, they're generally never loading out the PA at 3 AM after making 50 bucks playing Sweet Home Alabama, and they can put together a good living in any major metropolitan area and not just Nashville, LA or New York.