Blizzard Entertainment will unleash one of the biggest PC games of 2010 just in time for Christmas. World of Warcraft: Cataclysm, the highly anticipated third expansion for the world's most popular subscription-based massively multiplayer online role-playing game, will be available on DVD-ROM for Windows XP/Windows Vista/Windows 7 and Macintosh at a suggested retail price of $40 and will also be offered as a digital download from the Blizzard Store. A special Collector’s Edition packed with bonus items will be available exclusively in retail stores for a suggested retail price of $80. Check out this exclusive video interview with Blizzard Entertainment’s Frank Pierce below.