Unless you're planning to replace your stock wheels with aftermarket ones, I recommend getting the polished graphite wheels. They really make a difference. I have them on my silver IS and they look great...especially at dusk when the early-evening sun shines on them.
I didn't plan on getting them at first, but after comparing two IS 300's side by side at the dealership (one with, one without) I decided to get them. I'm glad I did.
- Mr. Moonlight
Silver w/ black leather; moonroof; polished graphite wheels