Hello, I have just converted to mac from a PC, having just bought a new iMac. My husband and I both have iPhones and our own iPads. I connected my iPad and synced with the iMac and then plugged in my husbands iPad. I think I stupidly did the wrong thing when it asked if it was a new iPad, I cannot remember exactly what I did but it ended up syncing my husbands iPad so that it was identical to mine. Eg we have same apps but different levels reached in games etc so he lost all of his stuff and had it replaced with my data. He wasn't too happy. Anyway, I don't really understand the syncing and am very new to it all. My question really is how to go about syncing my devices and his devices separately but using the one computer. We use the same apple ID. I understand therefore that any app I purchase will appear on his devices and vice versa, that is fine but can we keep the info/data from these apps separate? Also things like the way we arrange the apps, background picture etc. Do I need to set up a separate iTunes library?