As previously reported, the Chicago Apple Store will open its doors tonight at 6:00 PM CT at 679 North Michigan Avenue. The Chicago store will be the third large format store (the other two being SoHo in New York and The Grove in Los Angeles) and will feature: an Internet cafe where visitors can check email and use Apple’s new iChat AV and iSight digital video camera (20 iSights will also be given away); a class Studio that overlooks an eco-friendly greenroof garden; a forty-foot long Genius Bar; and more than 300 customer events every month including new “Genius Bar Unplugged” technical sessions. In addition, Apple has posted a photo gallery of the store.