i graduated myself with ifixit

crwdns2853023:0crwdne2853023:0

I change a 2 TB SATA Desktop Hard Drive from my son 's iMac within 25 minutes.

crwdns2853024:0crwdne2853024:0

First of all I was scare, but with your instructional video and step by step guide... was piece of cake! Thanks so much!

crwdns2853025:0crwdne2853025:0

Go to ifixit yourself and see a lot of things you can do, don 't be affraid!