I am about to change my system up a little. I am going to move my 640 to my primary HDD to replace the 250 GB that is currently there. This is not about storage space, the 640 is a 2 platter drive with 16MB cache. The 250 is 2 years older, 8 MB cache, and 3 platters. Long story short, the 640 is roughly 35% to 45% faster drive. I need something to clone or ghost a drive. Not sure the difference between the two if there is one. I just want to be able to copy everything from one drive to another, then boot the new drive as though nothing has changed. Got any software recommendations on how to do this? Will I run into an issues going from 250 to 640 drive? Don't worry about the Ubuntu install, I can remove that if necessary to reduce complications, so just consider the drive to only have Win7 on it.