[bigmattyh]

It sounds like you're asking about art techniques.

If you're looking for a quick way of really getting the look you want, study the buttons and pictures that you're trying to emulate. Specifically, look at where there's highlight, where there's shadow. Look at the texture. Pay attention to the colors. Do your best to recreate the same techniques, and when you're done, you'll end up with something that looks silver.