This instructable details the installation of a larger hard drive into a soft-modded original XBox. Here I recount my experience upgrading the original factory hard drive of the XBox to a WD Caviar Blue 500 GB Desktop (3.5") drive (WD5000AAKB).
How Can I Recover Data from a Dead or Erased Hard Drive?
Recover Hard drive software by Recovery Mechanic allows to undelete files, repair damaged corrupted and inaccessible disks partitions, recover deleted files and lost folders, undelete lost and corrupted email databases. http://recoverymechanic.com/