Is there a drawing tool?

I have been looking for a drawing tool(hardware)that will enable me to draw a picture as though I was using a pencil,pen? instead of using my mouse or scanning the picture then altering it in adobe, I know there has to be something, but I havn`t been able to find one!
Anyone know where such a thing could be found?what vender? wich one is the best? Etc. Etc.