I had all four brakes replaced for about 200 bucks recently. I went to a local Asian repair shops.
I have just seen an ad from pepboy for 109. Firestones has an online coupon for 25 dollars off brakes.
Throughout the years, I learn that you must quote several places for auto maintainence and repairs. Price can also varies even they are same chain.
One more thing, make sure to check the BBB.org about the shop you are quoting. There are some nasty shops out there you should avoid.