i've the same notebook. but with a faster cpu and more ram.
Did you succeed in installing OS X ?
Ii would be awesome to have os X on the 1920x1200 15,4" lcd
I tried several usb3.0 driver for my asrock z77 extreme 4 (with ML 10.8.2). But they all caused boot errors (i was not able to boot again into osx, not even by deleting the kext).