So I'm making the leap from my laser engraver and getting a CNC machine - and I'm using Corel (mainly) and Illustrator for my files.

Is there a 'more friendly' CAD and/or CAM software that someone with my Corel/Illustrator knowledge should look into?

And can anyone recommend a good CAD/CAM for dummies type of training book? I think I understand the basics of how the program(s) will work, but I'd like to do a bit of research before I jump in.