This tutorial shows how to set up basic metal materials using the Cycles Render. It shows how to set up and light a simple scene and how to mix shaders to make silvery and golden materials.
Simply changing the default Diffuse shader to the Glossy shader gives a highly reflective metal appearance but it can produce very dark areas. These areas can be given a diffuse colour by mixing the output from the Glossy shader with output from a Diffuse shader. The node editor is used to link the processes together.
The file created in the tutorial can be downloaded from my website —