[fatherofmany]

If you don't want to go the route of software based ghosting, many hard drive vendors include utilities with their drives and/or available by download that will let you transfer the old drive's contents to the new. Boot the floppy, setup the transfer, set the new drive as bootable, etc.

Everyone who invests any amount of time on their pc's should take the initial setup time to clone/ghost their system drives regularly, but as a quick fix, those utilities usually do the job.