After replacing the first one due to a surprisingly noisy hard drive, and the replacement itself being returned due to having a massive hardware failure, I'm still not using the iMac I ordered over a month ago. Funny thing is, the second iMac had the same rumbling hard drive as the first which I was prepared to put up with. With no more than a few days of usage, it just stopped working. It's been over a week since the second was returned and the new one hasn't been shipped! Anyone else share my dismal luck.