Nothing beats a good nutrition. As the old saying goes "Abs are made in Kitchen", indeed it is.. Of course if you add on weight training, it will speed up the process and look great at the same time. No point joining the club of 4,6 or 8 without proportionally built the rest of group muscles. Cardio could be subjective, it depends how intense your weight training and your current BF standing. If your BF isn't more than 20%, twice a week of HIIT would be suffice All the best in 2013 and those who's below BF 20, work hard and get the buns out in 3 months..