In a large, plastic zipper topped bag, mix together the honey, soy sauce, and red wine, garlic, rosemary, chili powder and pepper. Add the flank steak and marinate overnight in the fridge. Make sure you turn it at least once in the marinating process. Light the barby and let the coals get medium hot. Grill the steak for 7 minutes per side for medium rare, or to desired doneness. Let stand 10 minutes before slicing very thin against the grain.