I use a g31m-es2l and it sleeps perfectly without sleepenabler, just use latest chameleon and a DSDT file to get vanilla power management, you can generate one with the auto DSDT patcher off insanelymac. I had to additionally patch the DSDT from that with audio but thats all, I think they might have added the audio patch too now.
Only kext in E/E is fakesmc and in S/L/E I think patched applehda and ati4800controller (for 4850) kexts, although I don't use LAN cable so not sure about that.
I use a g31m-es2l and it sleeps perfectly without sleepenabler, just use latest chameleon and a DSDT file to get vanilla power management, you can generate one with the auto DSDT patcher off insanelymac. I had to additionally patch the DSDT from that with audio but thats all, I think they might have added the audio patch too now.
Only kext in E/E is fakesmc and in S/L/E I think patched applehda and ati4800controller (for 4850) kexts, although I don't use LAN cable so not sure about that.