When I'm going to slow down from a speed of at least 60mph i feel my steering wheel shake and vibrate Is this something with the rotors?

Yes more than likely, warped rotors. Have rotors turned if thick enough as well as new brake pads installed. If the rotors do not meet a minimum thickness requirements, they will have to be replaced as well. A good shake down of the front end wouldn't hurt either. Sometimes bearing, tie rods, etc... can cause stuff to happen as well. But I would bank on the warped rotor idea, no doubt. Good Luck. Let me know if further questions.