Yes my sound chipset is ALC 888, my processor is a quadcore Q6600, my graphic card is a GTX280 with 1Go ram, and I have 2 SATA hardrive, only one is used for macosx. I got 2x2Go of DDRII Ram.

you would be nice if you improve my DSDT, but for now everything is OK, sleep, shutdown, reboot, sound, grpahic card, using voodooHDA, NVEnabler, and I also installed standard leopard Kexts from iBoot CD from tonymacx86, I can give you the list.

The onlything that is not perfect is when I close my session and login with another user, system get slow, especially graphics...