Lets see your drawings!

[Sevaede]

I just use a mouse. I do all my lines in Microsoft Paint. If I'm not wanting any neat effects I do the coloring and shading in Paint as well. If I want to do fur effects I use Photoshop.
MS Paint can produce some wonderful drawings with practice. I used to not be able to draw at all on the computer but I just kept at it and slowly improved.

Indeed! I second the MS Paint thing. While I cannot draw in it, my sister does FABULOUS digital work in MS Paint. She is thirteen and has been doing it for about four years. I've attached some of her pieces.