here is an article that helped me out a bit. you can also do more searches on this site for articles and workouts. i am a spoon shaped endomorph so i really can't give you an idea of what you might need.
I lift 3 times a week & do cardio 5-6 times a week. But what really keeps me slim is my diet. I could do cardio & lift every single day, but if I don't watch my diet closely I'd gain weight pretty fast.