Questions?
1. When your braking the the car feel like it grips and then loosens causing a surging feel in the peddle?
If you don't have deep grooves in the rotors or glazed spots you can just replace the pads. DIY section can tell you how. Takes 10 min a wheel if you have done it before. Pads held on by 2 pins. Really want to pay $100.00 in labor for that.
If you have groves and glazed spots on the rotor you need to take them off and have them turned. Pull the Caliper and turn the break screw to pop off the rotor on front rotors. If you need one done on front then you have to do both. Never just do one rotor. That will machine the faces of the rotors and get them back to working order.