10.6.3 fully working here after following n1c3jack3t's instructions to install the newer SleepEnabler before applying the 10.6.3 update and then the tonymacx86 audio fix after restarting.

Kexts installed in Extra/Extensions:

• fakesmc.kext
• LegacyALC883.kext
• NullCPUPowerManagement.kext
• OpenHaltRestart.kext
• PlatformUUID.kext
• SleepEnabler.kext

GA-G31M-ES2L
E6300 2.8GHz (OC 3.33GHz)
Asus 9400GT 512MB
32bit