Just did a quick search at RockAuto and found:
A set of front and rear Akebono ceramic pads will cost $147 and rotors are all over the place but a set for cross-drilled 'high performance' rotors can be as low as $1185 for all 4 corners so you're looking at a little over $1,300 in parts plus tax and shipping. Then there's labor unless you do them yourself.
For comparison, when I was talked into the extended maintenance plan for this car (no regrets) I was told the price for new pads and rotors at the dealership is about $3,000! (The price for a non-M e9x was much lower.)
Last edited by rdollie; 06-29-2012 at 10:38 AM.