Hi Terabyte,
Since it sounds like you've put in some study time already, have you taken any FULL-LENGTH CATs yet (with the Essay and IR sections)? If you have, then how did you score (including the Quant and Verbal Scaled Scores)? If you have not, then it would be a good idea to take a FULL-LENGTH practice CAT Test; you can download 2 for free from
www.mba.com (and they come with some additional practice materials). That score will give us a good sense of your natural strengths and weaknesses and will help provide a basis for comparison as you continue to study. A FULL CAT takes about 4 hours to complete, so make sure that you've set aside enough time to take it in one sitting. Once you have those scores, you should report back here and we can come up with a study plan.
GMAT assassins aren't born, they're made,
Rich