Even in this gloomy economy. Within the year, the memorable fixtures will help illuminate weddings, parties and special events. Construction started this week that will transform the three main shopping floors of the 82-year-old building on Peachtree Street into an events venue. The Grand Atrium and The Gallery events spaces are scheduled to open in early 2010, along with two restaurants, Meehan’s Public House and Sweet Georgia’s Juke Joint. Later, a traveling exhibits venue will open on the ground floor. -www.ajc.com