I bought a MacBookPro with OSX 10.6.8 for my father sometime ago and now he wants a smaller & lighter laptop. So, I decided to get him a MacAir. My problem is, he is very grumpy in terms of all changes in his devices and specifically told me that he wants his new laptop to run the same as the old one. In his own words, he wants to turn his MacAir on and use it just like his previous one. I know there is a difference between Lion and Snow Leopard, but what he means is that he wants everything in the same place with all his settings. Sort of like a carbon copy of his old one. He isn't that much deep into Mac and uses Outlook, Safari and Office Package mainly. His Outlook accounts, PST folders and existing mail are his main concerns. Also, he has 3 different users (himself, mom and granddaughter). I'm thinking of using the Migration Assistant (never used it before) and my question is; Will he be able to carry on just like his old laptop, apart from the size issue, or am I likely to have to do a lot of tweaking? Any suggestions for an alternate path are most welcome. Thanks in advance.