Looks solid to me.
[quote]Once you are done with the old drive, securely wipe the drive before getting rid of it. If you are going to destroy it, make sure you smash the platters and hear them shatter.[/quote]
If you want, you could add something about how using full disk encryption means that you only have to delete your encryption key to render the data on the drive useless. The upside of that is that if the drive is still under warranty, you can send it back to the manufacturer for a replacement without having to send personal data back to them.