Hello, I have a 3-year old MBP running snow leopard. About half a year ago, I bought a rMBP running Mountain Lion. At that time, I did not migrate. Now, I feel the inconvenience of not having all the files in my newer computer. Is it still possible to migrate the files from the old MBP to the new one? Will I mess up the system of the newer computer? What will happen if both computers have files of the same names? Thanks.