I took a Kaplan course for my nursing boards. I found it helpful. They have a GRE course as well. Kaplan/GRE might be worth a look.
The one by the princeton review is rated best. The one by McGraw Hill is by the same people who write the GRE's. Between the two I've seen the best results. I got a 1300 and my best friend got a 1440. Personally, I think the courses are a rip off. Statistically speaking, most people do about as well taking those courses as using the book. Honestly, just donate near 30 min per day for about 3 months up until the day before the day before the exam. Take a couple of timed practice exams along the way and watch your score. I used the McGraw hill disc and got a 1290 and a 1280 leading up to the exam. Also: Check this out It's a link to PR's actual computer adaptive test. It's a good initial indicator of how much work you need to do.
