[Bluebimma]

Rotors - turn or replace all 4, theyre not that expensive to replace. That would cure all shakes when braking, as long as your LCABs are in good condition.

Press the pistons back into each caliper, as long as they press in easily, theyre fine. Grab the caliper and push in and out, with the piston pressed in still, this is to check the slides. If they seem "stick" or dont slide at all, remove the guide pins, take a grinder wheel and clean then grease them. Recheck for sliding.

Vibration while driving, could be wheels out of balance or tire starting to seperate, You can visually check for seperation by lifting the car and spinning the wheel to check for hops, low spots, high spots, excessive tire cracks, and lumps in the sidewalls. To check balance, obviously go to a shop and have the wheels balanced, hopefully theyre using some of the newer tire balancing machines that can measure roadforce and accurate tell the operator where to place the weights.