Here's the deal: 1) I have a dedicated home server on which I store all of my photos. 2) I want to use iPhoto on my Macbook to organize these photos. 3) I don't want to store any copies of these photos on my Macbook. Easy enough, right? Apparently not. I disabled the "copy files to iphoto library folder when adding to library" option under Preferences. I imported the file containing my photos. Lo and behold: there are 3 different copies of the same friggin' photo files under my iPhoto Library file (under Data, Originals and Modified). So, question: Why the heck are there ANY photos on my Macbook? Shouldn't disabling the option I referenced above prevent this kind of behavior? If not, what is the point of that option? Put simply, I won't use iPhoto if it requires my keeping copies of my photos on my (increasingly frustrating and obsolete) MacBook; much less, 3 copies of the same photos.