I have som concerns regarding referenced files when upgrading to 10.6. I'm using Aperture for adjustments and rough organizing, and then import a reference of the best photos into iPhoto for use with faces, places, slideshows etc. In other words, all my iPhoto pics are just references to the previews inside my Aperture library. Furthermore, I have an iWeb site that's based/dependent on iPhoto albums. Question: I would like to do a clean install, without loosing the Aperture-->iPhoto-->iWeb references. Is this possible? Is it enough if I put both libraries into the exact same path after installing 10.6? Will iPhoto find its previews inside the Aperture library, and will iWeb understand which photos to use?? Thanks!