I wrote an Inkscape tutorial I've been meaning to finish. It's a tutorial for a quick 3D text tutorial. I figured out that the best way to make a line is by two points, not millions of points to simulate a line. It's logical and easy.
See it at the Inkscape Forum.
This also works in Adobe Illustrator using the equivalent tools. Fancying it up is also what made me try to achieve the effects used in the current Megaman logo.