Since the days of Mac OS X 10.3 “Panther” Apple has provided a wonderful utility, Migration Assistant, to help move data between your old and new Macs. With this utility you can easily migrate your installed applications, system settings and user data from your old system to your new one.
However, life happens… and things don’t always go according to plan. This article is an excellent source of info on what to do before migration, when migration doesn’t work and what needs to move.
Read the full article -http://www.cultofmac.com/?p=45114