Turning the rotors will stop the vibration but it also removes metal and that will allow the rotors to warp more easily as they won't absorb the heat.
if you can, put the money you woud spend on turning towards the new rotors.
If The old rotors arn't scored or worn unevenly, you may get away with using the old pads again. Old pads from scored rotors will reduce braking ability and increase heat with the new rotors and that increases the chance of warping the new ones again.
Check the caliper slides to make sure they are free moving and torque the wheel nuts evenly, to 90 ftlb. Both will contribute to rotor warping.
JD