Also to the people saying that mana management is broke cause it's infinite. That's the new model Blizzard has stated that they want. DPS shouldn't have to manage mana (that includes all clothies), I can't recall the thread but it is out their.
But they clearly want us to manage an actual resource.
Warriors have Rage. Feral Druids and Rogues have Combo Points and Energy. Ret Pallies have Holy Power.
Shaman have...oh wait. Nothing!
Shamans have totems which we sometimes always have to look for (ie searing totem not attacking/totems oor)