Ravaged by AIDS, the interior-design world is mustering its forces to combat the disease. On a recent evening 1,200 celebs and socialites—among them Mikhail Baryshnikov, Susan Sarandon, Brooke Shields
, Christopher Reeve and Yoko Ono—showed up for a $350-a-head AIDS benefit, sponsored by Metropolitan Home magazine, at New York's 26th Street Armory. The dinner and auction of art and furnishings (including a Keith Haring silk screen, a Frank Lloyd Wright table, a 1907 Stickley oak chest) raised some $500,000 for the Design Industries Foundation for AIDS. After the auction, Peter Allen, Billy Crystal, Bette Midler and Robin Williams entertained the crowd, but the evening's focus was never lost in the fun. "It's not time," Midler warned the audience, "for anyone to be fed up with this cause."