Do you really need a tutor? To me, all that one needs to ace the GRE is a strategic study pattern, and the right materials. Trust me, if you do it right, you will ace the exam. For the verbal, your best bet is Barrons and NOVA is best for quantitative. At the end of your study cycle, take the two tests on the Powerprep software. Your scores on the real test may not vary so much from your scores on the powerprep tests.
I wish you the best bro. If you need any of the materials I mentioned, beep me on [email protected]. I'll send them to you as soon as I see your email.cheers!