If you are trying to choose software to clone your hard drive, unfortunately I have to recommend Seagate/Maxtor’s MaxBlast over the open source Clonezilla. The now-current version of Clonezilla does not allow you to easily specify the size of the partitions on the new hard drive. It can only automatically resize all the partitions proportionately or duplicate them in the same size (which means if your new drive is bigger you have to enlarge your partition later). Of course if you only have one partition, it doesn’t matter.
The other thing is that Clonezilla showed a warning about one of the new partitions not starting on a cylinder boundary. That’s another issue that doesn’t occur with MaxBlast.