I can't resist telling the story of my TWO Iomega 500 GB drives that have both died within weeks of each other. One was a mirror of the other. I lost almost everything, because after the first one died I I had to order a replacement and had only moved about 32 GB of data from the remaining drive before it died, too.

The shop where I took them to see if the data could be saved said they're very familiar with problems with the enclosures. But actually, this time the drives were bad, and they thought the problem looked like it did come from the enclosures stressing the drives. They were able to read one of the drives, but not long enough to stream the data off of it before it too was totally gone. As I have always done, they even used a cooling system as part of their efforts.

You might of course have a lot better luck than this. I have two older Iomega 250 GB drives that are still working.

I'm not a happy customer right now, and they wanted $700 to $2900 to see about getting my data off the bad drives IF it were possible, and they said they'd deliver it back to me on DVDs.
Heh.