Whatever you do tonight, go out to dinner and take part in SOS-29, Servers on Saturday, September 29th. At restaurants throughout the city, servers will be donating 10 percent of their tips at the end of the night, with all proceeds going to the New York firefighters 9-11 Relief Fund. Today s Taste of Midtown Festival in Overton Square features food from some 25 restaurants, bands, and theater performances. Classical guitarist Lily Afshar is at the U of M Harris Concert Hall tonight. Barry Whitehaven s Bing Hampton Rhythm Section is at the Blue Monkey. Subteens, Clone Defects, and Final Solution are at Young Avenue Deli. And blues diva Lucinda Williams is at the New Daisy.