Last night I went to use my intel 20" iMac (which was already on) only to find an error message telling me to restart it and so I did. It began to start up normally, white screen and apple startup sound were there, but there was also a sort of chirping noise coming from inside of the mac and rather than an apple on my screen there was a folder with a question mark. I eventually restarted again with the same results. I placed the install disk in and used disk utility, it didn't see my hdd! This morning I tried it again and it started up fine, but after a short while the chirping returned and I was met with a never ending beachball. I'm no rocket scientist, but I conclude that the hdd is dying/dead. The mac is from 2006 I believe, so it's no longer under warranty. I'm a million miles from any computer stores that deal with macs. So, pretty much I'm going to replace the damn hdd myself or it's not likely to happen anytime soon. Question number 1: Do you agree with my assessment of a dying hdd? Question 2: How do I replace it?