Awesome guide! I bought your suction cups for the front glass, and a toolkit, along with a 2TB HDD to replace the original 1TB drive. It was easy to replace both the optical drive and the HDD with the right tools and this very detailed guide to follow. I have had no problems with the internal cooling fans running fast with the new HDD either. It all came apart easily and seems to have gone back together without any problems as well. A huge help! You saved me several hundred dollars in repair bills. Thank you!