I have decided to make the effort in organizing my pictures library, many pics taken prior to owning a Mac. I would like to use iPhoto, but have some questions. When importing will IP produce duplicate files of these pics or will it just remember the location on the disk from where they originated? If I import everything all at once, what will make it easier to sort the pics by my specifications? Is there another app or script I can use to help with this task? Is there a good reference or site I can look at for help with this? Thanks in advance for your help!