I know I'm probably going to get flamed for this, but I'm not as tech-savvy as you guys are. I have been researching the differences between the 13" macbook pro and the unibody white macbook. So far the only differences I see are the hardrive (which is bigger on the macbook), and the pro has a unibody keyboard, sd card slot and firwire.. I just want to know if I'm missing anything significant because that doesn't seem like such an upgrade.. Thanks!