When you get back from your audition for Showtime Challenge 3 on Saturday, what better way to extend the musical showbizzery than joining Sadlers Wells Dance Club's West End night? Even if you chicken out of trying out for the stage yourself this is a fabulous way to indulge your West End whimsy and learn routines from Chicago, West Side Story and the ultimate dancers' musical, A Chorus Line. Camp it up, honeys! Heels,......