Okay, since I get sooooo many people asking me how I do my line art I finally knuckled down and made a tutorial
This is for inking on the computer and, yes, you'll need a tablet to be able to do some of the techniques mentioned in it. I'm not sure how much this will help...being able to ink well is an aquired skill attained through lots and lots of practice. Just like all artwork, you won't be able to do something amazingly just because you read a tutorial on it XD But I hope it helps in some way.
Have fun, kiddos