Mark - If you touch up your bumper cover and the paint comes off in a little while, consider this; prime the scratches with rustoleum, then apply touch up paint. (see my tale below) You could also go to a hobby store and get some paint "barrier", modelers use this as a primer to protect plastic from "hot" automotive paints.

When I first got my '95 teal wagon, I waxed my trim! (It looked pretty good before the wax dried!) I then cleaned the trim and put black again on it and then Armor all. In about three days it looked faded again. I was beside myself.

I decided to paint the bumper covers and trim and asked a good local shop to paint them. The owner told me that regular paint was too "hot" and would look good for a while, then peel off when the solvents softened the trim.

The upstart - I had read several posts discussing painting the roof strips with Rustoleum. Last fall I painted my front and rear bumper covers. The paint survived the winter quite well. My new beige trim never needs cleaning, and looks quite striking
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2 8s & 2 7s 600,000 miles total