You can cut non-ferious metal with your table saw. This means Aluminum, brass etc. Just use a carbide blade with about 60-80 teeth. Raise the blade all the way up so you are only cutting with the front of the blade and move slow. You don't need lubrication.
You can use a bandsaw, but it should be a metal cutting bandsaw because a wood cutting bandsaw moves to fast for a standard steel blade in the metal.
I would not use a chopsaw. Not because it could not work with a carbide blade, but because of the angle the blade will hit the metal. A chopsaw will be coming down with the full diameter of the blade hitting the metal. You want to limit the amount of teeth cutting the metal. This is why I raise the blade all the way up on a table saw.
Milling with a standard high speed mill or a carbide mill is fine. I have not used high RPM on metal because I use my milling machine for metal, and I have it set for 1800 RPM. I use a little spray of lub like WD-40 and it cuts great! If you plan to use a router for cutting brass then you will need to get info from someone else.
Thanks
Jeff Davis (HomeCNC)
http://www.homecnc.info
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)