If youre planning on mostly gaming, core 2 duos are way to go, especially if you are concious of your budget. However considering how much you were willing to spend for a Q6700, i would suggest getting a Core 2 Duo E8400, which is only $165 on newegg and is considerably faster and cooler than a E6700. the Q6700 is NOT just an E6700 with 2 more cores.