The Build: http://us.battle.net/d3/en/calculator/witch-doctor#fjkdUT!UZV!YbbZZZ
A lot of people stick with dire bats, but i go with explosive beast. It's more precise, and although it has less range than DB it's explosion is better when you get surrounded. Mass Confuse could be swapped for Zombie Dogs if you prefer more pets rather than the confuse.
Video Part 1: http://www.youtube.com/watch?v=Nbj_l3vQq8I