Hello everyone, I am buying a 17" i7 MBP AG screen and I am planning to upgrade to 8Gigs of RAM. Since I am upgrading most of the components, should I just go ahead and upgrade the HDD too? Is there really THAT much of a difference in the speed? This is going to be used for CS5, Final Cut Express, Aperture 3 or LightRoom 3, iWork, internet, music, blah blah blah.... Last question. I hate buying things on the internet, I like instant gratification. I want to buy this at an Apple Store. Can they upgrade the drive there in the store for the extra $45 bucks or do you have to BTO online to get the 7200 RPM drive? I know, I know, I could do it myself, but I have never attempted a HDD swap. Thanks.