Quick summary-
Girlfriend brought me her computer saying "it's broken". Dell Dimension 3000. HD mounted at the front of the box against the metal portion behind the plastic face plate.
Hooked everything up and plugged it in. Power it up, and I hear a repeated "click, click" coming from the HD. Computer does not boot, and gives a "drive 0 not found" message eventually about the time the clicking from the drive stops on it's own. I tried booting from CD rom drive and the BIOS would not show the hard drive at all.
Taking apart the machine I find a build up of dust over some of the ventaliation holes on the front of the cabinet. HD is mounted with the PCB facing towards the center of the case, in a little metal cage. Did heat kill it? Maybe but I do not know. I can post a picture of the dust I found if it's of interest. She doesn't leave her computer on for more than 4-6 hours at a stretch.
Have bought a new IDE hard drive that I will install all her system software on from the backup discs that came with the machine. We will get her a backup external HD after she is back up and running.
I would like to try and rescue her data off the old HD if possible. She has her iTunes collection there, her resume and her whole digital picture collection

Not something she can justify paying lots of money to recover, especially given money is very, very tight for her but the photos are near impossible to replace.
I would appreciate any help and direction you can offer me.
I had heard about changing the circuit board if that is the problem, and also cooling the disc down, and then trying to recover the data. Not sure if the PCB is dead or the cause of this? I was thinking of trying the cool-down method, but IF you think this is a good thing to try I have a few questions first:
1) fridge or freezer? How long?
2) allow the HD to hit room temp or plug it in right way after taking it out?
3) should I buy some specialized software like "Spinrite" from GRC.com to copy the files off or are there windows or Western Digital utilities that may work better or faster? I am concerned if the drive comes back to life it might be for a limited time so the more data I can get off it in a short period of time the better.
Thanks in advance for any help or assistance you can offer.
Cheers!
Brian