Hey I can't really decide between the Black Macbook or the bottom line MBP. I am going to be a Computer Science major in college so I will be using it a lot and need a pretty good machine. But what exactly makes the MBP worth $500 more than the macbook? It has the same processor and a smaller hard drive. The only things better that I can tell are a bigger screen and much better graphics card - but I don't see why those would make it worth $500 more. I know I must be missing something, but can someone please enlighten me on why I should spend the extra $500? Will the MBP last longer?