So the hard drive crapped out in my iMac, hardware diagnostic confirmed this. I need to replace it and now that it is out of warranty I will be doing a DIY job on this one. I am wondering what the best hard drive to replace it would be. I want two things. RELIABILITY, and speed. I was looking at the seagate barracuda 1TB 7200. I know there is a ton of variability in hard drives, any can fail, but what are everyones thoughts on a good replacement drive. Also I tried several searches on this topic and the MR search page kept giving me error messages, and mroogle is blocked here for some reason.