I looked at the above mentione options as well and went with:
Enkei NT03
http://www.avalonmotorsports.com/ind...roducts_id=304
TireRack has them. Not sure why they do not list it for the E9X. They do for the E46 M3s. Anyways, 18*10 et25. Like them for the rarity besides just aesthetics.
Lutfy