As others have already pointed out, go through your Kaplan OAT/DAT review book and do as many problems as you can so that you would be familiar with the styles of questions. I would suggest you to study the Biology, Chemistry and O. Chem since they would definitely take up some of your time for you to refresh what you had learned 2 years ago in Freshman/Sophomore year. I didn't study for QR or RC, but I would suggest you to try practicing some word Math problems because on my OAT test, I got tons of word problems that I didn't have enough time to read through and answer. So be prepare for it. For the Physics part, buy a MCAT book and scan through its Physic section, but probably it is not necessary to memorize every single equation, but be sure you know all those circuit (AC/DC), and also optics like the real image, mirros stuff. I am sure if you try to as many problems or questions in the review book and the CD-rom like the Topscore, you can get a very good score! Good luck!!