Hi. I am really lost here. In Windows, I used to copy my photos with Lightroom and store it in folders with years and subfolders with dates. Now, I don't know what to do. I have to cameras, so I have to rename the files in order to add a custom name with the name of the camera (for example DSC_00001-D90). Can I do that with iPhoto or Aperture? What do you do? Should iPhoto or Aperture store the files in their libraries or in current location? It's very important for me to have the originals to backup them to a external hard disk, with folder and subfolders as I said.