Re: shocking brake repair estimate!
Find another mechanic. How many miles do you have on your car? If it is time to have some brake work done, what kind of driving do you do? A top of the line set of performance rotors, pads, lines and fluid should be around 700 bucks just for parts. Even for an everyday street performance package you're lookin at around 400 bucks meaning standard parts should cost you way less than that quote you were given. Having your rotors, pads, and fluid changed should take about 3 hours of labor, factor that in with your local shop rates.
EDIT - it looks like justin beat me to it