I HAVE A 4GB WESTERN DIGITAL HARD DRIVE THAT HAS A PSYICAL FAILURE. IT CONTAINS VALUABLE DATA THAT WILL BE LOST IF I CAN'T GET IT FIXED. I HAVE AN IDENTICAL DRIVE THAT I AM WILLING TO SACRIFICE IN ORDER TO RETRIEVE THE DATA. HAS ANYONE EVER DONE A HEAD TRANSPLANT ON A HARD DRIVE? IF SO PLEASE HELP ME WITH INSTRUCTIONS OR ADVICE.