On Tues April 8 I went to the IT360 conference in Toronto. There I saw a very cool harddrive destroying machine for those who want to make absolute sure that the stuff that was on their old drives doesn't get into someone else's hands.
Here are a couple of pictures of an ordinary Maxtor drive pulled from someone's dell desktop.
There is no way anyone is getting anything off that drive now unless they are VERY rich, and VERY talented.
The machine that did that can be bought or rented from http://www.vernontech.com