Tickets: $20-$100 212-247-7800 http://www.carnegiehall.org Monday, November 21 Gala benefit concert in honor & memory of Skitch Henderson, with Judy Collins, Midge Woolsey, Tony Danza, Len Cariou, Freddie Roman, Charles Strouse, Sheldon Harnick, the New York Pops, and more, 7:30 FILM...