Is the 80gb 5400rpm harddrive really worth the $113 they're charging. I decided to go with a 15" Powerbook. It was between the 12" and the 15" and I decided to go with the 15". I wouldn't mind the 12" but I have a limited amount of dorm space next year and I don't want to have to worry about using an external display that will take up more space so I'd be happier with the 15". Anywho, back to the main question. Would I really notice that much of a performance difference between the stock 60gb and the faster 80gb? The size difference isn't really a problem for me but I was just wondering about the performance differences. Also, is the backlit keyboard worth it? I think it'd be a nifty little feature but I just wanted to hear some other people's opinions on it. Thanks in adavance.