As stated in the first reply, CCC is the best utility to use. SuperDuper is less expensive but it does not clone the Recovery partition which will be needed by your Father since he's running Mountain Lion.
sorry to stomp on toes, but I fail to understand the value of Carbon Copy Cloner.
Perhaps it was my bad experience with early versions (which damaged drives)... But Iv'e done HUNDREDS of hard drive upgrades with nothing more than Disk Utility..
Simply install the new disc, then option-boot off any OS (including an OS install disk), pop up Disk Utility, then Parition & format the new drive, then "restore" the old drive to the new one... boom-you're done..
I usually though go the long route:
1. install a new virgin OS on the new drive
2. boot into it, create a temp user, go to desktop, then fully update all updates
3. reboot, go to Utility, open Migration Utility, then "migrate" the old drive over to the new one, and tell it to bring all additional docs & folders...
and yes, it brings everything over.