I have cut a few projects with metal. I have cut 1/4" aluminum, but nothing fancy. It was pretty thick and took a few blades to make a small cut.
I made a couple of projects out of galvanized flashing sheets. They came in pieces 5x7, were really thin, and cut decently. I found a link
When cutting thin metal I always sandwich between two pieces of thin plywood. The thin metal likes to catch and bend making it hard to cut on its own. I made a stack by just taping the edges like I would do with any other stack.
I would really recommend that you start by getting used to what the saw can do in wood. When you are comfortable in wood, jump to metal.
I don't know much about your off the wall ideas (love to hear about them) it might be possible to get the look you are going for with a painted finish.