If you're reading this article, you've probably fallen into the upgrade trap at some point in your life. Speedy new computer parts, bigger, faster, sleeker than the ones you own. And you want them. It could be a new laser mouse, with all the bells and whistles, or the latest processor or even a smaller, better digital camera. You see the Intel commercial for their latest, fastest processor, with a happy family having a good time around the computer. Your computer isn't that fast, and your family...