Hi there.
I have finally a S.L. X.6.2 installation on my second drive. Sound is working and also wifi is recognized.
My only BIG problem is that I need to use the Empire efi CD, without no way to boot.

My step by step install from the first X.5.8 drive:

1- Guid partition with Disk utility
2- Snowleopard install from a .dmg
3- Boot with Empire efi i5
4- My hack 1.0
5- Adriangb DSDT on the Extra folder and some kext
6- Pfix 3.0

After that I have a working system, I just need the video kext but I'm sure that the Natit.kext is what my Nvidia need for working.

About the boot.plist I'm not sure I have the right one, or I maybe need to change some thing.
Thank you for any help.