ComiXwriter: specialized scripting software
This looks interesting: It's a Kickstarter campaign to fund development of a specialized comics-script-writing program. Larry Young and Richard Starkings are among the people on the "advisory panel" for the project. Features include automatic page numbering and panel numbering, a bunch of automatic formatting, and the ability to view script and art side-by-side. My concern would be that it might push (or require) you to follow their style of formatting, regardless of whether you like it or not. It'll retail for $99.
http://www.kickstarter.com/projects/219402484/comixwriter-scriptwriting-software-for-comic-books
http://www.kickstarter.com/projects/219402484/comixwriter-scriptwriting-software-for-comic-books
Comments
But since comics doesn't have that, I'm not sure of the utility of it. I can set up what I need in Word in less than five minutes.