My sister is a pro photographer and uses a 1tb external HHD. We have been all windows for our computers Until now. Myself and my parents also acess the drive often over our network. Well, my sister and I are getting iMacs (mine is getting here on the 1st and hers is on the 3rd) while we are going to be completely switched over to Mac my parents are not. The need acess to the drive and need to be able to use files off of it. Currently it's ntfs format which I know will not work with macs. My current plan is to transfer her 400gb of photos over to another DrIve and format the 1tb to FATex. FATex is a format all operating systems can share. Will this idea work for what I want it for? Do you guys have any other ideas? Any tips or tricks to make it easy?