This is a very very easy way to create an amazing looking brushed metal texture with shine and color

Let's start...
1.) Begin by creating a new image. For this I chose 500 x 120, because I'm making myself a signature for a forum.
2.) Now, go Effects > Clouds... and create a cloud covering. Like this... and feel free to play around with different kinds of clouds

3.) Now, go Effects > Noise... and create a good amount of noise. Be sure to turn the color saturation down to zero. Like this...

4.) Next, we'll need to create the brush effect. Effects > Blurs > Motion Blur and set the angle at 90 degrees. Like this...

5.) Now for the color. To do this, go Adjustments > Color Curves. Up at the top, change 'Luminosity' to 'RGB' and play around with the different colors.

Feel free to add text, glow, etc...
Here's my finished product...





















