Do what Amd said Inter, far cheaper and easier.
Removing the HDD is so easy, then just dump the HDD into the external case and you're done. Should take about 5 minutes and cost about 5 bucks.
http://www.amazon.co.uk/SATA-HARD-DR...7177983&sr=8-2
^ Cheap
http://www.amazon.co.uk/IOMAX-SATA-A...7178019&sr=8-1
^ 3 times the cost and not as practical or useful.