Robin2:
However I only have the Fritzing files and I want to get maybe a dozen of them made. It will also be a useful learning experience for me to deal with a PCB fabrication company.
I understand Fritzing appeals to those who have little electronic background. You, on other hand, appear to have a very firm grasp. Eagle CAD is super easy and accepted by many PCB manufacturers.
Below is a link to a series of very educating Eagle tutorials:
Eagle CAD Video
It's worth viewing.