Never thought about it, but are we allowed to ask for advice here as well? ^_^
If so, question. I have a little project I'm doing for a friends birthday, and what I want to do is add a picture to the overall image, but with a certain effect. Notice in Photoshop there's an 'inner glow' feature right? Using it causes the center of the image to fade to a color on to the border, right? Well, I want to do the same, but instead of a color, I want it to go transparent. I know it's possible as I see quite a few sigs that have it.