Great article!
One thing to add is to make sure data security is considered at every stage of the IT lifecycle. Here's a nice article highlighting the data risks involved
http://www.simsrecycling.co.uk/News/Is-there-a-Data-Security-Gap and some great resources from Data Privacy Day 2013 here
http://www.simsrecycling.co.uk/Data-privacy-day-2013Sims also work with all types of customers to create tailored secure and environmentally friendly IT disposal strategies, so can advise you on the best route for you.