One of the quiet pleasures for me every BlizzCon is taking a trip through the Art Gallery -- it's not quite as flashy as the panels or the hands-on demos, but it is awesome to see the real core of Blizzard's work, the art that inspires all of these various universes and characters.
Take a look through the gallery below -- there's some cool concepts and art from all three of Blizzard's universes (and some excellent looks at what we'll see in the very newly announced World of Warcraft: Cataclysm. You can also see the noobz figurines on display. Many of those were created by Blizzard artists, and some of them were created by fans as well. The whole gallery really shows off the kind of talent that's putting these games and their concepts together.