I ordered some Kumho Ecsta 712s from a local place called WheelWorks last week, and plan to have them installed this afternoon.
I opted for the 225/45 size, based on the width and similarity in size to stock rolling diameter. The only concern i have is with rubbing in the fenders, which is likely, but can be worked around.
I should have some pics later, and impressions on whether 225s on 7″ RS wheels work on the BF.