The math portion is disgustingly easy. I'm not that smart but got an 800, so that should tell you something. If you have time, for the verbal part I would get some flash cards for the most used words or at least learn the roots, those will help you most of the time. For the writing I would suggest creating a template and just pumping out 5-7 paragraphs for each essay. Template meaning the beginning and ending of intro/conclusion, it lets you worry about the writing and not thinking up some eye catcher first sentence. I would suggest linear, almost formulaic arguments.
it's not that hard of a test.