Hi I am upgrading my system, I am not sure which CPU i should purchase, I am looking for something with overall performance. Either AMD Athlon 64 X 2, 6000+, 3.1GHz, or AMD Phenom X 4 9500, 2.2GHz. If you can help me decide on which one is better. Also, whichever AMD processor is better can you tell me how it compares VS Intel Core 2 Duo E7400 2.8Ghz.