Yes, as stated Photoshop CS 5.5 Extended and earlier can do it, but it's a little tricky to work with the Repoussé dialogue. The metallic materials that you were asking about, some are included with Photoshop CS 5 Extended and later as well as you can visit Photoshop.com to download an additional 100+ materials, including a set a metallics. There are also stages and sets and two sets of IBLs (Image Based Lights). http://www.photoshop.com/products/photoshop/3d
If you have Photoshop CS 6 Extended you'll see that the entire 3D system has been overhauled and is interactive (non-modal). So long Repoussé. In addition, there are several new interaction models that allow you to modify the extrusion, deformation and bevels of the 3D Extrusions—which can be made from Text, Shape layers, or Painter strokes. Also, all of the information is non-destructive so you can go in and change the text, color, font, paths, etc, until you're happy with what you have.
Here is a quick example I did for you in Photoshop CS 6 Extended.
Cheers and good luck! (^_^)