Hi everyone, I've been preparing for the GMAT using Kaplan GMAT Advantage (consists of the Official Guide v12, Kaplan GMAT Pocket Reference and the Kaplan GMAT CourseBook ). I'm almost done using these resources and am considering getting more practice by either A) purchasing the Master GMAT online course, or B) buying the Official Guide Verbal Review and Quantitative Review, or C) purchasing the Kaplan 800 textbook (from Amazon), or finally D) purchasing the Manhattan GMAT set of 8 Strategy Guides textbooks only (from Amazon) ?

The most expensive of these options would be A) (purchasing the Master GMAT course) since most of the other textbooks I mention are available for a very good price at Amazon.com

On another note, if I wanted some additional Official preparation from GMAC would you suggest I purchase the Official Guide version 13 (newest) or the Official Verbal and Quantitative Reviews?

Thanks for your time!