Hi Guys!
Im running Vanilla 10.6.6 thanks to your epic guide but there are a few problems, so I'll start with a spec-out:

i7-980X
EVGA E760 X58 (BIOS 77 - Latest - Supports up to 16 Core CPUs)
2x ATI HD5870's XFire
Corsair Dominator GT (3x2GB)
2x Vertex 2 120GB
Samsung SpinPoint F1 1TB

So the problems began upon the update from 10.6.3 to 10.6.6 via the combo updater:

10.6.3 booted perfectly in 64-bit mode, where as now with 10.6.6 installed I HAVE to go in via safe mode otherwise I get a light blue screen.

Spotlight has randomly stopped working (may just be as I am in safe mode)

Native Power Management will not seem to work with my CPU - I have patched my DSDT with what I believe is all the patches needed for this to work except for SpeedStep and P+C States - I don't think this is required for NPM?

iAtkos S3 V2 works perfectly in 64-bit mode so I am at a loss as to what could be causing my problem.

Okay so main things I want to get working:

64-bit NON-Safe mode
NPM
SpeedStep + Sleep would be great too although there is a severe lack of 980X DSDT's patched for this CPU around.

Any help would be greatly appreciated!
Thanks!
Myles

UPDATE:
Just did some tinkering and aparrently my kernel AND extensions are running in 64-bit mode!
I ran GeekBench and got a pitiful score for the spec: 13676 in 64-bit mode and 12500 in 32-bit mode

In system profiler it shows all 6 cores and 6GB RAM however :/

Is there something wrong for me to get such a low score?