My fave is Data Rescue II. It has a demo mode so you can run it to see if there is anything to recover. Please be aware, your files are on your drive, they can be recovered, but anything you do will increase the risk that they will get overwritten. Don't restart, do not even download Data Rescue on that Mac. Use another machine, get a USB drive or burn it on a CD.
http://www.prosofteng.com/products/data_rescue.php
My fave is Data Rescue II. It has a demo mode so you can run it to see if there is anything to recover. Please be aware, your files are on your drive, they can be recovered, but anything you do will increase the risk that they will get overwritten. Don't restart, do not even download Data Rescue on that Mac. Use another machine, get a USB drive or burn it on a CD.
http://www.prosofteng.com/products/data_rescue.php