If you have at least 3 backups of data, you still don't have enough.
Recuva was offered as a solution earlier in this thread and it is a great recovery program, but you will have garbled file names a lot of the time. The data can be recovered so long as you did not trim your drives or use a secure delete too much since the loss.
But backup, backup, backup, backup. Your files are NEVER save in a single location. Ever.