As for what degree would be most useful, it's most definitely a JD. (I'm considering options for myself in that direction.) Having a law background lets you get much deeper into the specific terms of a deal. It's that level of fine-tuning which can turn an average deal into an awesome deal. Plus, with a law degree, you won't have to beat an emasculating retreat whenever a client has any sort of law related real estate question.
I've taken courses in marketing, psychology 101 (a giant waste of time), and business courses. That's all they're good for, just quick courses, not as degrees. You can pick up marketing concepts pretty quickly in just a few books. I got a dual degree in psychology for the same reasons as the other few guys in that major.
On any day you could use ALL of them.
Congrats on your accomplishment and welcome aboard.
This is an exciting industry and a truly exciting time to become involved.
Best of success to you,
Annette Lawrence, Broker/Associate
Remax Realtec Group
Palm Harbor. FL