So I finally upgraded from iPhoto to Aperture and have imported all my photos to the Aperture library. My question is how do i delete my iPhoto library only? I have about 7 gigs worth of pictures that now take up 14 gigs on my hard drive because they are in both my iPhoto and Aperture libraries. I just want my iPhoto to be empty and have that extra 7 gigs back. Any help please?