A few times we have been asked, what is the best tool for drawing? Here is the best answer and will be flat out proven correctly every single time. Your imagination is the best tool! Who cares if you use micron pens, spray paint, sharpies, pencils, blood or even a computer program. What matters the most is that you channel your ideas in whatever medium du jour treats ya best. We prefer the low tech simplicity of pencils, sharpies and maybe an brush as we dig the traditional comic book style approach to black and white art.
Be on point and be creative, as that is what folks want to see. Check out this killer hot rod drawn on an Nintendo DS using a program called "Colors", thus proving that imagination is the truly the best tool.