Come on Guys, Here Is The Real Way To Do This (Score 1)

I use a bulk tape eraser. I take it out of the computer and magnetize the whole casing, then draw it back from the casing while on (per instructions). This eliminates all magnetic information on the platters, or at least makes it unreadable - mostly randomized.

Be careful with this though. I use it far away from any computer or disks!! Take the bulk tape eraser and the the hard drive to the garage and plug it in there. Zap, Zap, Zap!

These things are available all over the Internet. Look up "Bulk Tape Eraser"