Ten days ago the hard drive went out on my iMac. Dan was clever enough to get me up and running (sort of), but I couldn't save any new or edited files and couldn't let the computer go to sleep. Basically, I've just been "limping" along since then, using it sparingly.
We talked with Tim, who said he was willing and able to install a new drive for me. We ordered it, and it arrived Friday. Yesterday Tim came to the house and, within 45 minutes had my Mac opened up, the dead drive out and the new drive in, and everything closed back up.
Then it was Dan's turn. He reinstalled the operating system and all my data (which, thankfully, was backed up completely).
Whenever I have a computer emergency, like this, I realize how lucky I am to have my own personal hardware and software super heroes to come to the rescue. Thanks, guys!