Have a coupe now and I love it, LOVE IT. I didn't care for the roadster when it came out but I have to say I really do like them now, a lot.
As for the color black is a pain to maintain but its beautiful. I have graphite. After two black PT's I thought I'd take a break. No matter what you choose I'm sure you'll enjoy the car and the countless hours I know you'll spend keeping it shined up.

Good luck.

- Pat