Blizzcon is officially underway today, starting with a presentation showcasing the Worldwide Invitational tournament held earlier this year. A company spokesman went on to talk about the tournaments being held for World of Warcraft 3v3 Arena, Warcraft 3, and Starcraft 2, followed by word that Starcraft 2 was not yet ready for beta, but that Blizzcon attendees would be included in the first round of testers when the beta program starts. The big news of the presentation, though, was the unveiling of the Wizard class — the third such class to be announced, along with the previously mentioned Barbarian and Witch Doctor. Read on for some more details.

Career Hot Potato asks: "I've been out of school for little more than a year and I have only good things to say about the job market. So far, there doesn't seem to be any lack of demand for a good .NET developer. I've got to admit, though, I feel a little disloyal at this point. Several great job offers have come my way and I've taken them. My resume is starting to make me look a bit restless and it worries me. Until now I've just chalked it up to 'I'm just settling in,' but now another opportunity has been dropped into my lap. Would I be digging my own grave by taking this job? It'd be my fourth job in 16 months but each offered a promotion and a 30% to 40% raise. I know better than to put a price on job satisfaction but I'm pretty certain I'd be happy there. Is being branded as a 'hot potato' enough to keep you from switching? What's your price on this stigma?"