My iMac shut down while I was transferring some files to and from an external drive and now it won't reboot. It only has the flashing "?" symbol. Ominously, it also makes a clicking noise. I'm afraid the hard drive is dead, but there are invaluable family pictures and movies and stuff on there that I want to try to save if at all possible. I have ready a new WD Caviar 1TB hard drive to replace the old one with. And I have a Lacie Firewire 500GB external drive. Can anyone tell me what to do to try to get whatever is possible off the old hard drive and onto the new hard drive? The ideal would be the old hard drive being fine and I just being able to mirror it onto the new drive and then stick it in. However, since the system doesn't boot, I'm not able to use SuperDuper or anything like that. I also do not know things like whether or not I need to have the Lacie drive be empty before trying to mirror the old drive to it etc.