I've been making sigs for a long time at various forums and thought I'd offer my services here as well. The price is 6k per sig, and 1k per avatar. (Hey a girl's gotta make money somehow 
) So if you'd like one, please link me to a screenshot that you'd like me to use, (highest resolution possible) or you can meet me ingame and I'll take one of your character. Also let me know the name you want on it. My name ingame is Bella Samira, just add me to your friends list and my other names will come up when I'm using them. I find that it's best not to put too many requirements such as color, just let me create something awesome for you Here's a couple of Guild Wars sigs I made recently:
and an older one:
Satisfied Customers:
and here is a link to a bunch of my other sigs: http://ammogirl.blogspot.com/
