Moving a computer safely is as much about protecting your data as protecting the hardware. A jostled machine can loosen internal cards or drives, and a hard fall can damage a spinning hard drive. A little prep, a backup, and some padding keep both your files and your components safe on moving day.
Pro tip: The original box and foam are the best packaging if you kept them.
Watch out: Always back up your data before a move. Vibration and drops are a leading cause of hard drive failure.