well first off, i am happy that you have success with installing OSX on K50.
Its funny that i dont need DSDT patch anymore since upgrading to the latest ASUS BIOS
mao_red, the graphic card i have is working through Chameleon Graphic Enabler, and with the Extra files i provided (if you have the same laptop) you should be able to boot 64bit with QE/CI.
Ryan, i dont know if DSDT is the solution to your problems, but there are some fixes in the com.apple.boot.plist for Chameleon, so try that. For HPET try this:
http://netkas.org/?p=262. Also you should check if you have apple accelerated or nvidia accelerated system with this:
http://www.realtech-vr.com/glview/. If not try the NVInject 64bit kext, its working OK.
About sleep, it is enabled on my system but after coming back from sleep my usb and ps2 is not working.
ryan, you should try a different version of sleepenabler, that one is for 10.6.2 only.
Kokozedman, the battery kext from superhai is working excellent here with correct battery meters and no errors when i unplug the power source
So the only two things that are left to take care of are: Sound, (maybe solved with new voodoohda release), camera (upside down) and restart/reboot. i can shutdown normally but the other options are not working. ALSO last but not least, always use the kext utility
I hope i helped a little bit,
Cheers