Cuteseyus, I am in the same boat but I am taking it on April 24th. I would say look at posts from people who have studied and done well on the exam and base your prep on that as that is what I intend to do. I intend to kill on the GMAT and will focus only on OG 10, 11, VR & QR Guides and GMATPrep.
My 2 cents :)