Just bought my first Mac, a 13" uMBP, and upgraded the RAM to 4gb and HDD to 500gb. I am installing OS X as I type this, and I have some questions regarding the best way to set everything up. My wife and I will be using the Mac. We each have several email accounts, as well as our own iPhones. Should I set up an account on the Mac for her, and another for myself? It seems this would keep our email separate, which would be good. However, if we want to sync to the same iTunes library, and have access to the same pictures, can that be shared if we have separate accounts? For example, if I import all of my pictures while signed in to my account, will she have access to them from her account? I want to avoif duplicate copies of everything. Also, we have MobileMe, so does that impact anything? We want to share a single calendar, and have it sync to both of our phones. I think those are my big questions, I appreciate your help as I am totally new to Macs. Thanks.