I am thinking about powder coating my stock 19" Rays. So far I'm thinking about a ~80% gloss black or a dark gunmetal (like the Advan RS or the stock coating on the brake calipers), both either with or without a solid red time attack pinstripe. If I went with the pinstripe it would be added later as the company I would be using only handles the powder coating.
I may also consider powder coating the brake calipers red to match the car, but that all depends.
Here are some quickies from Photoshop. The time attack stripe is a little too thick in some places, just keep in mind that it'll be thinner.
Gunmetal
Gunmetal w/ time attack stripe
Black
Black w/ time attack stripe
Keep in mind that the gunmetal would most likely be darker.
At this point, I'm not 100% sure what I want. I know I love the stock Rays and think the bright silver finish looks really nice.
I am pretty much torn 50/50 between black and a nice, dark gunmetal. I think gunmetal would be more interesting because it's metallic... black is more likely to be... boring.
Also, the color I choose for the wheels will most likely end up being a theme... i.e. my headlight housings will most likely be painted to match. I'm undecided on what I would do with the door handles... looking at the photoshop images they really look fine left alone, but we'll see. Brake calipers also may or may not be powder coated Solid Red.