Thought I'd share this-
I had an 80 Gb system drive and it has become full. I have no idea what most of the stuff on it was. So, long story, I got a new bigger drive. Now to transfer everything over, passwords etc - oh my. BUT my son found Clonezilla.
Its free and doesn't run under windows but as a boot disk and makes a copy of your C: drive - an exact copy. Place the new drive in, wire it up, boot up with the DVD drive, make the copy, reboot on the new drive 240 Gb. Unplug the old drive, keep as spare. Done - everything seems to work no need for passwords, registration code etc - all done in a hour.
Worth making a note of the name for future reference - its FREE