I don't know about you, but I can't afford the test prep classes, so I decided to go the self-study route (an interesting move for a notorious procrastinator 😉).
I recently purchased the Princeton Review's "Cracking the GRE with bonus DVD and online access..." I too plan on taking the GRE this summer, and conveniently one of the online tools available to you upon purchase is a weekly study plan based on when you plan on taking the test. The DVD was rather informative, the online tools are thorough and helpful (with 4 full length CAT tests included), and the book itself is well organized. I purchased it at Barnes and Nobles, and felt like it was worth the $36. I particularly like their strategies for breaking down the math section, and their verbal practice section is nice too. Some of my friends prefer Kaplan for the vocab, and I may end up purchasing other supplemental study aides in the near future, but for now I feel like the Princeton Review book I bought is pretty all inclusive. I highly recommend it! Good luck on the GRE!