Has anyone actually used the Kaplan online Science Review system? I think it is supposed to have lectures etc and costs $500. I was thinking about going this route to hopefully get a good science review (PS is my weakest) and some good test taking strategies then supplementing with the Comprehensive Kaplan review book and full Examkrackers set, maybe TBR for Gen Chm and Physics - would the later be necessary if I purchase the Kaplan book? I also plan on the 8 emcat practice tests. Does anyone think the Science Review online was useful for them and/or worth the $$$???