This trailer profiles the Witch Doctor class in Diablo III, Blizzard's imminent action/RPG sequel (thanks Ant). The clip shows concept art and gameplay footage while an imposing voice over explains the Witch Doctor's powers to cause illness (hey, at least he makes house calls!).
The Witch Doctor owns. I will probably give in, and play Barbarian first (for a planned coop group), but WD will be a close second, probably solo. Giant Toad > Diablo 3.
Only dislike I have with the Witch Doctor is his lack of a more heroic physique. The Male WD has the distended belly of a starving man, along with the trembling shakes of an addict. In comparison, the 80 year old Barbarian has biceps that weigh more than the other characters combined... Blizzard really could have gone with a wide receiver type physique, or even a marathon runner physique if they wanted to stay ultra skinny and a more confident stance, but oh well.