Ok, I was planning on getting a Macbook Pro for a while now, but one of my jobs fell through, so I only have one. Thus, I'm thinking I should go cheaper, like a Macbook. My questions are: What are the real differences between the Macbook and the Macbook Pro? (Real meaning, differences that influence how it performs.) Is the case sturdy? I dunno what exactly it's made of, so. Will a Macbook with 2.0 GHz, 1GB RAM, 100GB HDD, -vs- a Macbook Pro with the same specs show a big performance increase?