Well this is more of a learning thing then a tutorial.
D/\SH had asked to see a psd in progress kinda thing to see how I do stuff.
This is a very simple signature that took me all of about 10 min to toss together.
I included the psd just so you can kinda see what I do, its unlocked so you can turn stuff on and off to check what each layer does. It wont actually teach you anything more then how layers can really make a difference.
There is some useful resources such as the gold text you can edit the text to your liking to make your own thing or copy the layer styles to make something new.
Have fun have at er.