King Arthur and those crazy, fun-loving Knights of the Round Table are on the search for the Holy Grail once again in Atlanta Broadway Series' SPAMALOT. Taken from the popular motion picture, Monty Python and the Holy Grail, Spamalot is the winner of three 2005 Tony Awards, including Best Musical. Through March 22. $25-$70. Wed.--Fri., 8 p.m.; Sat., 2 and 8 p.m.; Sun., 1 and 6:30 p.m. Cobb Energy Performing Arts Centre, 2800 Cobb Galleria Parkway. 404-817-8700. www.cobbenergycentre.com.