Snow, your guide is really detailed, precise and concise at the same time, this is what i most appreciate in a guide! These last weeks i've read so many guides about SL installation that i was quite puzzled and could never get started, i think that this time i'll finally get my hands on this long awaited installation following your instructions.
The intiguing thing is that i have more or less the same HW as you, just a couple of subtle differencies.
I have a Captiva 9800GT with 1GB memory, i've read somewhere that it's basically the same as your 8800GT, is yours 512MB or 1GB? If it's 1GB can i use your com.apple.Boot.plist with its GFX string as it is?
My GA-P35-DS3P is rev. 2.1, and i could see from the Gigabyte site that 2.0 and 2.1 revisions followed the same roadmap about firmware upgrades, so i guess that if i upgrade it to F12 as you did i can even use your DSDT.aml?
Thanks for your work and i hope to get a reply from you!

Hootcho