Hi siriusly,
To start, a 650 is a fantastic initial CAT score (the average score on the Official GMAT hovers around 550 most years). You also appear to have given yourself plenty of time to study - which is good. From what you've described, your immediate Study Plan is "book heavy"; unfortunately, many GMATers who study in that way end up getting 'stuck' at a particular score level. Even the best books are limited in what they can teach you; they also can't force you to approach questions in a certain way and their explanations are often one-sided. There's certainly no harm in starting your studies off in this way, but you should also plan to take NEW practice CATs/mocks at regular intervals, so that we can gauge your progress (and make sure that if you get stuck, that you don't spend an inordinate amount of time in a study approach that keeps you stuck).
Before I can offer you any additional advice for your studies, it would help if you could provide a bit more information on your timeline and your goals:
1) How recently did you begin studying?
2) When are you planning to apply to Business School and what Schools are you planning to apply to?
3) Going forward, how many hours do you think you can consistently study each week?
GMAT assassins aren't born, they're made,
Rich