Step 3: Nuking your drive
There are several tools you can use to 'nuke' your drive, but the best is called 'HDD Erase'. It is best because it is simple software, that triggers a feature built into the firmware of your hard drive (if built around 2001 and later) that destroys everything. You can read about it here http://cmrr.ucsd.edu/people/Hughes/SecureErase.shtml. I have tried to use the file they supply to make a cd, but it didn't work, so I'll show you another way.