image recovery

got home from holiday and was transferring images from camera to computer and deleted a folder in error, is there a decent free recovery tool to get them back or at least one not too expensive?

I've had a lot of success with Recuva, I've always used the free version but the Pro one is not too expensive to keep in the tool box.

Zero Assumption Recovery

Another thumbs-up for Recuva (gree version).
Good luck

thanks peeps, went with Recuva. only one problem they have had the money yet i have no activation email , have sent three messages and had no reply so at the moment not a happy chappy