Thanks for all of the opinions on this, I'm convinced to keep them black now (until I change my mind again anyway!). I had planned to get it lowered today but I had to reschedule to next monday, I think that will make all the difference to how the wheels look.
I agree with TT though on the painting of the skirts and spoilers, I think keeping them black goes well with the wheels and the other black trim on the car, although I might get the upper part of the rear bumper painted.
As I say, I'll post some pictures when it's lowered. Between now and then I've got to get my BMW E30 sorted for its MOT

It's a good job I like cars
