Well defining Templates with graphics I think is a no-no as it would have a lower center of appeal.
If you really want to get bold you can do a redesign and change the layout kinda like Lane does. You seen his redesign proposal's and screen shots for 6.4. They look cool. You can accomplish alot on the look of things with CSS so your mod could be a combination of the two. That way you could only say design two. One for distribution and one for sale for a nominal fee. Basically come up with a complete redesign of the way threads looks.
