Filevault repair failed, need advice on data recovery options.

As you may have seen from my previous posting, my main user Filevault account was corrupted and every attempt to repair it has failed. Since the repair was a failure, I would like some advice on what the best data recovery software would be. Since I don't feel like paying money for anything I would prefer you to give advice on software I can get for free. However if its absolutely necessary to use a purchased software to get best results then feel free to tell me. Often I hear that a lot of the Linux software have a great reputation in data recovery ability. I am able to get Linux on my Mac because I have a Knoppix CD and a Qemu emulator that would enable it to work so be sure to mention any of those options. Just try to tell me what the best way to recover the data would be. Thanks.

Internal SATA drives, preferably in a RAID configuration. You can fit up to 4 in a macpro, including the system drive. They're cheap and reliable, and you could easily fit the capacity you currently have with your externals into the three spare slots.
If you can't get enough capacity this way then you need to look into an external RAID like the G-RAID.
A firewire daisy chain is far from the ideal storage solution for HD.

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