has anyone bought the whole package???? is it good for math and science as well? i've used kaplan twice and i can't renew it, so i'm just looking for another good but cheaper test prep. any thoughts are greatly appreciated. right now i'm just using achiever btw. i just want some more practice tests for everything really...math is a HUGE one for me, and my science as well. i'd love to get my pat score up there too. i got a 19 the last time i took the dat.