I just got my scores back this weekend (35R), and my personal piece of advice is you gotta stay as relaxed as possible for the test. The worst approach is to go in worrying "I have to break a 30". Just log the necessary time to prep for it (which is a lot, granted) and be confident enough so when test day comes you can say you're gonna get the best score you can get. Seriously, I've heard multiple stories of people doing well on their TPR/Kaplan diags up until the tests, and collapsing test day. (And is it just me, or does anyone know a LOT of people who bombed the verbal this year? Seems like I'm the only double digit score i know so far out of my immediate circle.
Study hard, take a review course if only for the practice tests, find some horribly boring periodical like the WS Journal to read a couple days a week to help on the Verbal, and most importantly get enough sleep and dont burn out before the test.
And although I'm not one to talk cause i'm banking on my high mcats to compensate for my GPA, its still only part of your application. Breaking a 30 doesn't mean a darn thing in proving your motivation to become a doctor i feel, and if your a tad sub 30, my best friend last year got into einstein, emory, nyu, waitlisted at duke with a 29. So, hoepfully that helps