Discount Tire gave me a smokin deal on my tires - I only went there because....my dealership told me to go and check out their prices!!! Honestly I saved about 35% - I also know now how much my dealership is over-charging!!
What was even more surprising is that they were really willing to negotiate with me - I even checked the age of the tires and they werent old - so I walked out pretty happy!
(NOTE: Anything to do with car stuff is not one of my most exciting things to do - I always feel like Im going to get hosed on the pricing....but with a little help and direction from my dealership service staff they pointed me in the right direction.)