The thing about "toning" is well. The word needs to die in the fitness world already. Muscle tone actually refers to the degree of tension in a muscle. So we all already have "toned muscles". Anyway if you see it that way or not I'll move along on the subject. You want to burn fat so you show more muscle definition, great that's a great goal. I too am trying to do this right now. Although I'm sorry to inform you that no one can spot reduce fat. I.e. tricep extension to get rid of bat wings or crunches to get a flat stomach. These are great workouts that everyone should do, but it is not going to just give you the results you want. The bottom line is, to burn body fat. To do this you must have a solid nutrition plan that involves eating less calories than you burn, which involves you getting enough protein, fats, and fiber. So solid nutrition is the bottom line. Next you must have a solid training plan. One in which you prioritize heavy, resistance training combined with cardio and sufficient recovery time. The more muscles you work the more calories you will burn. The more muscle you build the more fat will be burned from your body as a whole. Sorry for the essay, I could go on forever but I think you should get the point I am making. And please let's all kill the word "tone", it's more suitable for the music world.