Hey - glad to see another Chicagoan on here. Yup - I was laughing all the way during the blizzard when my VX was just crushing through all the snowdrifts leaving everyone else stranded...
Anyway - I would suggest taking a look at your calipers and pads. My calipers used to freeze when I bought the truck, so I did a complete front brake overhaul. New calipers, pads, and rotors from R1 Concepts and now I'm happy as a clam (and can stop on a dime).