Hello Brian:
Most of your work will be in milling, drilling, and all the parts are pretty small.
There are a lot of used milling machines available, look for a used on, but make sure you see it in operation. I suggest you get a machine with the Fanuc control.
To start learning about CNC programming, look at the mill-drill examples I have on my website, you will see that its not too complicated.
Fanuc CNC programming training. Learn CNC for Fanuc, Yasnac, Mitsubishi CNC controls, CNC Machining Videos and DVD's, CNC programming training, CNC education,and CNC consulting.
Over the years I have trained a few guys in a position like yours, just getting started, they learned it and so can you.
Good luck, write to me with any questions you might have, the email is on the website.
Heinz.