I wasn't wanting to single out one company for you, but if you are looking at Southern California, be sure to consider talking to the Career Coordinator at Tarbell, Realtors. Yes, it is the agency that I work with, but I have heard many agents comment, even those who may have changed companies, that they were glad they started with Tarbell - it is know for it's great training and education programs. You will get wonderful guidance and direction with your consultation, as far as books, when, how, what works, etc.
You know, this is a "people" business and it's important to know that you like to interact directly with people, like to engage in conversation, are a good reader and truly want to HELP folks with their real estate needs. You will be richly rewarded.