If I buy the new Mac Pro, I will replace the 320GB drive with a 1TB drive by myself. May be I shall test the machine first to make sure that it works. Then, swap the drive right away. What is the best way to move everything that come with the machine to the new, larger HD? If there is nothing extra that come with the machine (are there any?), perhaps installing directly ｆｒｏｍ the DVDs to the new HD is the simplest way.