So I've been eyeing the m11x for a while now... but I dont really wanna spend over a grand on it. I was wondering, if I were to get the i5 version, would it be significantly slower in gaming / 3dmodelling / music production than the i7? I play stuff like nfs hot pursuit (lots of racing games) mass effect, arkham asylum etc. But I really don't want to go over that 1000 mark and I am pretty sure the i5 only comes out to around 900 something. So what do you guys think? Anybody have an i5 and can say anything about the impact it has on games? I know it must be not even that much since most games depend on the gpu. Also is it possible to overclock the i5 to speeds of the i7?