[astroracer]

Satin silver or black... Well, you will have to "prep" the pieces for black by sanding them (use a Scotch-brite pad for excellant results) anyway so... sand them a bit, put them on the car, and run it for a while to see how you like it. While it has the satin pieces on it take a few pics and color the trim in black for an easy look-see.
Just an FYI on the bumper painting.
This what I do with no peeling or lifting problems: Hit the bumper with an 80 grit disc on a 3M softpad. Rough it up enough to remove the shine. You will probably find most of the chrome will be removed at this point anyway. Wipe it down with wax and grease remover and then spray it with Dupont Vari-Prime self-etching primer. Top that with a good primer/surfacer, block it out, do what it takes to cherry it out and shoot your color. I have done this on a lot of truck bumpers and have never had a problem.
Mark