www.MyBoneYard.com is a licensed electronics recycler who guarantees that they'll strip away and delete all of your personal information from the computer, cell phone, or PDA. 

Next time you need to get rid of one of these things, register each product on their site and print a prepaid shipping label for each item.

Once the device is received, they might even pay you for the device via a Visa debit card that they send you.