sat test prep

<p>i took the SATs once already, in June, and received (cr)630 (m)670 (w)650-69 on mc and a 7 on the essay. i am planning to take the SATs again, in October or November and i would like to at least score above a 2000. how do you think i should prep? im not very regular with sitting down and actually doing some practice tests so im thinking of either getting a tutor or signing up for the college board's online course. have any of you had experience with either? if so, how much was your score increase? additionally, for those of you who have taken the SATs at least twice, what was your score increase/decrease for each section?</p>