[q]MTNBKR is an MBA. He's on a mini vacation, though.[/q]
I'm baaaaack.
I took mine the semester before I was to start grad school (was still an undergrad). I don't know if you can take it too early or not. If I were in your shoes, I'd try to take it by this Fall, giving you ample time to study and take it again if necessary.
Maybe the test has changed in the 10-11 years since I took the test, but the only prep I did was to work my way through one of the test prep books. It wasn't a hard test, I scored in the top 10% or so. Then again, I normally score well on that sort of test (top 5% or better on every standardized test I took in grades k-12).
Don't sweat it, it's about as hard as the SAT (or it was when I took it).
Chris