I have 10.6.6 everything is fully working (minus sleep it KP)
Video - full qe/ci - team fortress 2 on steam with OC' 79 to 90 frames
Audio - full working ports no garble or issues
Restart / Shutdown
USB 2.0 every port is now working.
This takes a lot of trial and error. took me about 10 hrs total to polish and finish my install. Thanks to the original poster