I have a NBP Si w/OEM wheels. I was going to get aftermarket ones but then the OEM ones really grew on me. If I could afford it, I would get the type R wheels, but DAMN those are expensive. Or I would go Mugen GP but DAMN those are expensive too.
I'm just gonna stick OEM for now. But to be honest, I really like the look of white wheels on a NBP car.
I'm not a very big fan of black on black or really black on anything but white (like you said). I kinda like the bronze on black or bronze on white, and I LOVE gunmetal on black or gunmetal on white.
Since you have black, and want white rims, I say go for it. Otherwise I'd go dark gunmetal or possibly even bronze.
Good luck!
Oh and post a pic of the wheels you were thinking of getting!