That's is one sweet ride! I don't ride my ksyriums in the winter either (they stay on the road bike in the garage.)
I have 2 sets of wheels for the my Cross check commuter, both single speed, Surly hubs w/ Mavic MA-3 Rims, And Formula hubs w/ Mavic CXP-22's. I've run the Nokian Hakkapeliita 106 35mm studded tires on both. They work great, I was concerned they wouldn't be wide enough, but they are.