There's a huge number of tutorials I could go through here, but please remember, these take ages to draw, scan (or draw on computer) and write up. I'll be adding these when I feel I have time to do so. (And you've also got to remember I'm not Akira Toriyama. These tutorials can only teach you to draw the way that I do.)
 

Recommended Drawing Tools
             -Stationery
             -Software
______ -Hardware

Lesson 1- Drawing Goten's face
             -Basic shape of face and hair
             -Three quarter view
             -Side view
______ -Expressions
             -Super Saiyajin
Lesson 2- Drawing Goten's body
             -Basic body shape
             -Hands and feet
             -Stance and rotations
Lesson 3- Drawing Goten's clothes
             -Fighting gi
             -Casual clothes
             -Drawing folds/creases
Lesson 4- Preparing Lineart
             -Making lineart transparent NEW!
Lesson 5- Colouring in and shading
             -Base colours
             -Cel style shading
             -Adding effects and tweaking
Lesson 6- Drawing Manga
             -Planning
             -Drawing, inking and effects
Lesson 7- Backgrounds
             -Painting Backgrounds NEW!