At about 35-40MPH and beyond (road and wind noise most likely drowns out this sounds after that amount of speed) i've noticed a sqeaking noise that goes along with the rotations of my wheels. It seems to come from the driver side front wheel area and was bad in the cold but seemed to go away when the car warmed up but today it was about 50 degrees out and well after the car had warmed i noticed the noise. One day it seemed like it got momentarily louder while braking. Any ideas what it could be???