Just curious if anyone had advice on buying the 27 inch quad core. I want this computer to last for another 5 years and I do the following: LOTS of videos/pictures of kids, some editing of videos, and watching videos on internet. I know its hard to see into the future but if anybody has any advice on if I should just get the exact model they have on store.apple.com or should I buy more ram, bigger hard drive, the better processor (i7). Also: I have an old, roundish airport and would need a new external hard drive for backups. Does anybody recommend a Time Capsule? they are pretty expensive and I would only get it if they are fantastic. i'm willing to use my old airport and could probably get a much cheaper h.d. for backups anywhere.