Epicness
So I should change the upper body work outs (Bench pressing, deadlifts, pullups/chin ups [havent decided which one I want to do]) to be an say day A, while stuff like crunches and cardio on day B?
Epicness
Yes, you shouldn't work on the same muscle group 2 days in a row. And you should do both chin ups and pull ups, because they don't work the same muscles. Though if you really want to choose one, I would go with pull up's cause it's a bit harder than a chin up.