The Back Up Lesson...
I just had mine a few months back when my main audio drive failed. I was deep in a project and hadn't backed up for two days. I got the data I needed for $565 or so from a local guy, with a new HD thrown in for free, but it would have cost a lot less to maintain a Time Machine backup or RAID Mirror.
There are software tools, generally for PC, that may get your data back for you, but you might better spend the money you'd spend on the software having a pro do the recovery. Clean Room recovery, which could be required, will cost you a lot more.
I have had drives fail to spin up due to failed power supplies in external enclosures, easily overcome with a new power supply, but it sounds like drive death to me too. It is a sad fact of computer life. Drives Fail. It is just a matter of time.
I feel for you bro'.
