This came out a while ago, but if you haven’t seen it, its totally worth the watch. It shows off how awesome the barbarian is, some of the cool gear, not to mention some of the more 3d elements of Diablo 3. It also has some nice developer commentary.
Here’s the first cinematic trailer for diablo three. You can, of course, watch this on their main site or on youtube, but their main site can be pretty slow sometimes (and they make you do the age check every time if you clear cookies), and youtube, well…I like having it right here. 
Anyway, its pretty badass, as is every single trailer Blizzard has ever done, cus they be cool like that. 
