Apex gets credit for the EHCI fix.

On another note. The SATA fix in the first link works great even for ich9 board like mine. AHCI now shows up as ich10 in system profiler instead of "unknown ahci controller". Dont have an SATA section in my dsdt, but IDE1 had the same address so I added that method there and it works.

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GA EP35-DS3P - Intel Q9550 - 2 X 2GB Dominator 1066Mhz, EVGA 8800GTS 512MB
2x320Gb SATA in Software Raid 0, 1x1.5TB for Time machine and storage (Geekbench 6293)
10.6 Retail 64bit Using DSDT for audio-889a, video-8800gts, ethernet w/TM fix, USB fix, and SATA fix.
MacBook 2,1 - 10.6 Retail
MacBook 3,1 - 10.6 Retail