I am new to Macs and i started checking out iPhoto and Aperture but I have a question. It appears that with Aperture, when you add photos it adds them to it's library and does not read the files it was added from. Also, even though I have the option not checked to create a new version when making adjustments, it appears that it still does. i can see the master image still untouched in the library. Is there a way to have Aperture to not add photos into it's library and just read the files from the location that I already have them? And is there a way to have it edit the files directly? I mean it is nice to have to have the mater files untouched but most of the time, I want them touched and if I don't I can just create a copy and edit the copy. Thanks!