Problem: You want to ensure all the permsisisons are set properly along with the UIDs.
Solution:
- Copy the folder from the old machine onto the new machine, into the /Users directory.
- Using the Accounts perferences window on the new machine, add a new account. When you do so, make sure the short name on the account is the same as the directory name you copied over. OS X will then 'see' the existing folder and ask you if you want to use that folder, or if you want to overwrite it. Select the option for keeping your existing folder, and OS X will set all the correct UIDs and permissions as necessary.

