do not quit your cardio... cardio is VERY important to keep your heart healthy. you can cut down on the volume and up the intensity (HIIT) but dropping it all together would probably set you up for some fat gains. cardio is an important (although i hate it) tool to keep your heart/cardiovascular system healthy, keep your insulin sensitivity more inline with your goals making it easier to keep fat off AND gain muscle. its FAR FAR better to burn more and eat more, than to lower your activity level so that you dont' have to eat as much.