I just wanted to share my final winter setup:
Elbrus I08 Anthracite Wheels w/BMW Wheelcap
18" Pirelli Sottozero Serie II 225/45R18 Non Run-Flat
Thanks for fellow members helping me decide on my wheels
P.S. I did end up buying from tirerack and am immensely pleased, great quality and super fast shipping (literally received the wheels/tires overnight)!