I´m using ML 10.8.3 on my Asus X71Vn and it works almost perfectly.
The only points not working are Sleep (yeah, of course ._.) and my webcam - but thats not important yet.
The bigger problem is that i can´t play games like WoW or Sims 3 without problems.
When I start World of Warcraft, it works with a FPS of 40 to 60, which is pretty good, compared to my notebook running WoW on Windows - There ist almost the same framerate.
But if there is a group of many mobs + a group of many players, the FPS crashes down to 5 - 15 - nobody can play like this.
Well. The Sims 3 works worse. The time to load the whole game is about 5 to 10 minutes. After loading, the game is pretty jerky - also with low graphic settings.
On Windows, both games work great.
Intel Core 2 Dou T5800 (2,0 GHz)
nVidia GeForce G9650m GT (1GB)
3GB DDR2 SD-RAM
I also uploaded you a list of my installed kexts.
Thanks a lot!