Actually, I think I am being dumb about this. I probably should just go with the 3.0 ghz. If I buy that one, it is a computer already built and running with a 1.5 terabyte hard drive, where as if I did the 3.2 ghz, it would be 10$ more, I would have to build it myself, and it would only be a 120 GB hard drive. (hard drives have gotten expensive!)