Copy Image of 10Gb Hard Disk to 20Gb Hard Disk

I have a Western Dig 10G hard disk on my system. I just bought a
Western 20G hard disk. The 10 is installed as Drive C, the 20 as
Drive D

I want to copy a mirror image of my 10 onto the 20, then make the 20
Drive C (in this way increase the capacity of my C Drive from 10 to
20). I understand I cannot just do a "copy *.*" from one drive to
another - I may need a special utility to properly copy all the files.
These are both Caviar drives, and I have the hard disk utilities
floppy that comes with these drives. I think the utility to do this
may even be on this floppy.

Does anyone know how to do this ????

norton ghost.. and no i dont work for them