On our MBP me and the mrs both have separate user accounts. In iPhoto I have a number of photos that ive taken and the mrs has photos that she's taken. Also in her iPhoto are our other photos which we transferred from our windows computer at Xmas. What we want is one iPhoto library rather than one each. So that when we log in with our own user accounts it shows the same photos, albums etc. For us there's no point having separate libraries. What's the best way to achieve this??