I too am having rotor problems with my Uplander. At first I would get a rumble when I stop. Now at 39k mi. My steering wheel actually wobbles from left to right. I'm sooo fed up with these brakes.
I spoke to the dealer who said I can either replace or resurface them for $330.

I guess I'll replace them all together. I only have a litle more than a year left on my lease and I'm turning this thing in. Probably for a Toyota.