Hello jLou, and welcome to MobileRead.
Yes, it's very easy to convert your Mobipocket (PRC) files to ePub format using a free program called "Calibre". We have a forum dedicated to it right
here. Go there, download the program, and just ask if you have any questions.
The only thing we can't do, I'm afraid, is give you any help in removing DRM (ie "protection") from commercial eBooks. It's against our site policy to do so, I'm afraid.