These are what I have found:
There might be more,
Pirelli Scorpion Ice & Snow $158
Michelin 4X4 Diamaris $298
Dunlop Grandtrek PT9000 $227
Continental 4x4 SportContact $255
Pirelli PZero Rosso Asimmetrico $249
Anyone have these? I'm leaning towared the Continental because I have them on my 2005 S4 but I don't really like how I can feel every bump and such.