I'm pretty excited. Although I'm not applying to "business" school (just a 5 year accounting program, only needed a 600 to get in), it still feels awesome to do well on a test.

I started preparing about 3.5-4 weeks ago, but only seriously in the last two weeks.

Study Materials:
Barron's GMAT 2008 - I basically read this cover to cover. I did not do the tests at the end though. My diagnostic came from this book (just barely scored "good" in quant and verbal, just barely being one or two questions away from average or fair or whatever the next lowest grade is)

OG11
After I went through the verbal section in Barron's I did the first 50-60 questions in the review sections of all three types of questions.
When I finished going over the math review section in Barron's I did all the problems in the math sections of OG11, definitely spent time going over why I got questions wrong.

GMATPrep 1: 710
GMATPrep 2: 710
GMAT: 760

Best of luck to everyone! I went in confident and came out really happy. I think confidence goes a long long way, so for people who get really nervous and tend to do worse because of it I recommend taking some time a day or two before the test and doing the first 10-15 problems in each section in OG11. These really help to simplify things and boost confidence.