In case you were wondering about the differences between Intel’s i5 and i7 CPUs, Brad Boerque has a good summary on why the i7 might be worth the extra money.
It’ll make complex operations in demanding software smoother and decrease the time needed for serious number crunching. Shaving a few seconds off every minute of encoding 1080p video, for example, adds up if you regularly encode projects that are a couple hours long. Mobile gamers will also want to go Core i7, if only because Intel doesn’t make mobile Core i5 quads.
My typical buying routine is to get the fastest CPU, the largest HD, and the most RAM possible.