I'll be there, there'll be an open bar and raffle prizes, including a few good giveaways from our friends at SwagDog, local developer (they've got an office out near Western and Belmont) Midway will have their latest games available to play (including a MK vs. DC tournament, I believe), and it should be an amazing time. There are plenty of tickets left, and even if you can't grab a ticket, I can probably get you in at the door. Just tell them you're with WoW Insider, and I'm sure we can work something out.
Plus, it all goes to support Child's Play, the charity started up by Penny Arcade that donates videogames to hospitals for kids to play while there. There are a number of events going on around the country (including the big dinner in Seatlle where Blizzard is giving away that employee-exclusive statue). But of course the one here in Chicago will be the best: you'll be able to have a great time, help a worthy charity, and talk Warcraft with me (when I'm not trying to figure out the Joker fatality in MK vs. DC, that is).
The event starts at 7 over at Plan B, at 1635 N. Milwaukee Avenue, Chicago, IL 60647. Bring a friend and I'll see you there.