I am looking to purchase MacBook Pro. I'm definitely wanting a 500GB HDD mainly because I take lots of photos, love to catalog using Aperture, etc. I'm mainly using the computer for my masters program but certainly don't want to run out of hard disk space. Other than the obvious different in speed, I've heard that the 7200 can be a lot noisier and get a lot warmer than the slower HDD. Am I going to notice a difference in my daily tasks with a faster drive? I assume it would make a difference when using Aperture and other HDD demanding apps but I just don't know if it's worth it or not. Can anyone provide any experience/insight? Thanks!