Prosoft Engineering Data Rescue
Techtools Pro 7
iDisksoft Data Recovery
Data Recovery Free - think you need to upgrade to paid version for RAW files.
I hope while you're contemplating on what to go for, you're not using the MBP?
If you are, you really need to stop doing so, as there's a chance you could be overwriting some of the sectors on which the photos reside.
If you decide to go with TTP 7, you have the option to enable Trash History monitoring, which will help undelete mistakes or accidents.