RAWR!

This tut is a piece of pi$$ to do :P
I used it in my sig, as you can see VVV

Default your colours (D)
Edit>Fill...>With Black
Filter>Noise>Add Noise
Add the mpoise at about 30%, Guassain, Monochromatic
CTRL+L (Levels) change the first box to 130
Now make a New Layer
Filter>Noise>Add Noise
Add the Noise same as above
CTRL+L (Levels) But this time change the first Box to 180
Now set your Blending Mode to Screen
Merge Your Layers Down

The Stars are In My Sig VVV

Let's See Yours! Here is my final product:
http://img.photobucket.com/albums/v112/Sea...Untitled-12.jpg