hi adriangb, i have now all working in 64bit with x.6.3.
But, audio do not work.. even if i put your attached files: DSDT and LegacyAppleHDA. Off course I have HDA enabler also. Why ???

For the atheros - i7 problem, I have connected my fonera with ddwrt in ethernet, the fonera is setted as client, so it's like a wireless card.
I can now drop the DLink dwa-547 atheros based, waiting some good news on this topic.

For the rest, all work great eccept audio and sleep.

Restart, shutdown, 64bit boot, time machine ecc.. geekbench is about 8000!