So after having downloaded the freeware vector program Inkscape a few months ago and tinkering around with it here and there, I finally used to it for an entire piece and was very pleased with it. For one thing, because it's a vector program, the lines are actually smooth as opposed to Photoshop where the lines are messy no matter what I do. Secondly, it's easy to work with for the way I do art anyhow. I lack any kind of tablet or even scanner for that matter and so when I do lines for a piece I'm working on, they are pencil on paper and then photographed with a digital camera. I find Inkscape to be a good program to add digital color to such