daknetworks.com

Macbook Pro slow after 10.8 update. Many are having the same issue. I threw in the towel and purchased another after market hard drive from macsales.com. They promise it will work with some custom firmware they have on it. The hard drive I purchase is located here:

http://eshop.macsales.com/item/HGST/0J22423S2/

With a fresh 1TB hard drive that's verified to work and original CD's in hand, I went onto install Mac OS X 10.6 with a fresh install rather than cloning this time. It wouldn't install... See above.