i'm about to turn 125k on my '99 M6 T/A, and was wondering if any general maintenance is recommended. i've owned the car for 5 years, and put right at 100k on myself, almost all of which are highway miles. i use mobil 1 synthetic and change it every 5k miles. other than that (and just having the clutch and fuel filter replaced), i haven't really done anything to the car. know i need to change the plugs, plug wires and pcv valve, but feel that is a little more than i can handle. anything else you guys would recommend?