It's late and I'm about to crash, but I just had to share that I finally got audio to work.

I took Joeboxer's advice and used VoodooHDA from Multibeast. The newest experimental version (0.2.61) worked for me, but it doesn't look like optical out is activated.

Have any of the other solutions (AppleHDA, DSDT, etc) made the optical out (toslink) work for anyone?