Wizdom required on circuit board milling.

Ok I'm getting the hang of this CNC stuff(some anyhow) but now I
would like to apply this new hobby to actually making stuff. I would
like to mill circuit boards for my other odd projects and seem to be
falling short on the information front.

I found Eagle software and a few odds and ends but no real complete
how to sites for lack of a better term.

Any good ideas on the best path to follow to get from idea to
artwork to Gcode to 2 sided machine etched circuit boards?

Brian S Punkar
BSP