3GS 32gb WHITE! was concerned with the color at first, but now i'm glad i went with white. just has a clean look to it. and spending most of it's life inside a case anyway, doesn't make much difference really.
I have a white 16gb 3Gs. I originally wanted the black one but they were sold out and I didn't want to wait. I actually like the white one now. It looks better with most cases ... especially clear or see thru types.
I just upgraded last week from a black 8GB iPhone 3G to a white 16GB iPhone 3GS. Love the quickness of the 3GS, love the white - I've got it in a SwitchEasy Capsule Rebel Arctic, and I must say it looks pretty sweet.