If you've missed the trip this year to Siggraph in L.A., you'd better not miss BlizzCon. BlizzCon is a convention organized by Blizzard Entertainment for its games - WarCraft, Diable and StarCraft. It's at the Anaheim Convention Center in California on 10th and 11th October 2008, with tickets priced at $100. BlizzCon is the stage for new releases from Blizzard, concerts and StarCraft/WarCraft gaming tournaments.
You can get some pictures from last year's BlizzCon at: