Just a quick follow-up, in case someone else runs into the problem as me down the line and stumbles across this thread...
My eight year old Dell desktop wouldn't power on. I thought maybe the piece of junk finally gave up all together. So I found the BlacX Duet, hoping I could salvage the hard drive and all my key files.
I got the hard drive out and inserted it into the Duet, and it worked, except I couldn't access my documents (pictures, music, work documents, etc). Some sort of access denied error that I couldn't figure out. But a local computer consultant did his thing and I was able to get all my personal stuff off the old drive. He copied it onto my new laptop.
So $90 consultant + $60 Duet...$150 was a low price to pay to not lose eight years of memories, key work documents, Depeche Mode, et al music on itunes .
I thinking if you're not a complete donkey like me, you can probably figure out how to get access to the protected files. But it was a relief to not have the hard drive completely up sh!ts creek. Thumbs up to Thermaltake.