Hi, I am buying a new iMac and plan to install Lightroom (first time mac and Lightroom user!). My wife and I will each have our separate user accounts on the iMac, but with full admin privileges; except for iTunes and Mail, we plan on sharing everything on the iMac, including all applications and Lightroom and the main Lightroom catalog (we don't want nor need our own separate catalog). When I'm logged into my user account iMac, I want to be able to make all edits that I want in Lightroom, move photos, rename photos, and I want those changes to stick to my user account, but I also want those changes to stick and show up on my wife's user account next time she logs in, and vice versa when she makes changes in Lightroom. Is this possible with Lightroom? Is there anything special I need to do during the installation process? Thanks!