[ChrisZang]

Dude,

i really don't want to add insult to injury but when you buy a Porsche you have basically these options:

a) If you always want to go to the dealer for everything, better be prepared (and financially able) to pay big buck$ every time you even drive there and honk the horn
b) Find a good independent shop (ideally one who doesn't mind if you source your own spare parts) and see your bills shrink significantly. Fortunately our car is as exotic as a Civic in CA, so there are MANY good independent shops around.
c) If you know how to handle a tool then go over all the DIY pages and maybe show up at a DIY day or make friends with other owner at an autocross and they can show you how to do basic things like changing the brakes

Now about the $750 brake job. Beats me.
If you go with original Porsche spare parts, then the pads should be maybe around $250, the replacement sensors $40, so we are looking at maybe $300 in parts. That would leave us with $450 for labor. At a rate of $150 / hour that would be 3 (!!!) hours. Man, I can do the job in 30 minutes in my own garage and I am not a mechanic (I am a computer guy).

That's not right, they seriously ripped you off dude.