I have a rear brake kit from Baer on my car as well, they just sell the rotors to match the front ones. Check it out at
Suneil Baer's it All cut and past with this if that doesn't work.
http://home.swbell.net/ssmumich/my_car.htmlIt's $125 per rotor for cross-drilled/zinc washed/slotted.
Suneil