A couple years down the road after my turbo I'll be looking into a new color to. I feel the same way you do, can't go with a stock color. I was leaning toward the blue at first too, then I saw the Volvo G, that's pretty sweet too. But it's been done before so I'd just be copying. Then I remembered a cool color I'd seen before. It's kind of a bronzy gold off the Top Secret cars.
http://www.a-dt.no/motorsport/suprabank3.jpg
It's close to the Volvo rust color but lighter and looks like it has a nice flip to it.