The system profiler reports a 'NVIDIA' device w\ 32 MB of VRAM so it doesn't seem to be detecting it correctly. I'll give the preset in osx86 tools a shot tomorrow but I don't know anything about creating custom EFI strings.

I get a 'System Extensionn can not be used' error if I try to move any of the .kexts from extra/extensions to system/library/extensions. Is this why the kext utility exists? What do those commands you provided do exactly?

The 2nd time I installed Snow Leopard I did so without running your script and it still failed at the same spot. I recreated the partition as well to make sure that nothing was still lingering from the script on the drive.. Does this have anything to do with running the installer in 32-bit mode as opposed to 64-bit?

I have to go to sleep. I'll continue troubleshooting in the morning.. Thanks!