Good luck with the GRE. I asked one of my professors, who is absolutely brilliant, what his advice would be. He said "Swallow a dictionary and thesaurus." When it comes to the Verbal portion, you either know it, or you don't. I have yet to meet anyone who felt that studying for that portion helped in any way, shape, or form.
As for the math portion, work on timing, ensuring that you don't spend too much time on any one question and end up not finishing the test. Very bad.
I have a 3.7GPA and got a 770 Quantitative, 4.5 Analytical, and 450 Verbal and had no problem getting into Grad school at a pretty nice university. Just to give you an idea. Research/Internship will help to compensate if you get bad scores, but if you do well, it usually doesn't matter too much if you don't have a lot of experience.