Hmm, that cnc mill certanly looks cute, but this one will not get you far milling metals, it's more for making small part from softer materials like wood or plastic. You could engrave in metals though.
As for CAD I think you must walk the path of learning yourself.
Acad is very simple for learning, and with a help of book or even help and tutorials within the program you could learn it pretty quickly.
When you learn the basics 2d drawing we can get you to 3d modeling
