I'm going to an advertising awards dinner on a Friday night and the dress is creative black tie. I don't own a tux, so I'm planning on wearing my two-button, charcoal suit, french blue shirt (or something other than white), solid black tie, solid black braces and cordovan lace-ups. Do I need to wear a cumberbun with this? I'd rather not, I guess. Any sugesstions on shirt color? Other sugesstions? Thanks gentlemen.