Do you have any friends at the FBI or NSA forensic labs? Not even Drivesavers can recover that kind of a file loss. The worst part was the reboot which very probably overwrote some of the deleted file with cache files. Had you been running TechTool protection, you might have been able to go back to a previous version of the directory on your hard drive and recover, but event that is tricky unless you boot from another drive.