this article was extremely helpful. i just finished building a new server rig reusing most of the parts from my old hackintosh.
sandy bridge 2600k, stock
asus p8z77-i deluxe, flash back rom, optimized bios
8 gb mushkin ram
pci sata card from monoprice with silicon image 3121
bitfenix prodigy
corsair h80
corsair builder series cx600
installing os x 10.8 was pretty straight forward with the new guide and the new multibeast. graphics proved to be a problem though, until i read this. prior to this guide i was able to force a resolution via chameleon wizard but had to boot graphics enabler=no, and it only showed 64mb of vram.
after this guide, it still showed only 64mb of vram, but could now boot with graphics enabler=yes. messing with the vram in the bios was no help. later i realized i had the wrong pci root setting set in my smbios. adjusted this with chameleon wizard and rebooted. after that, full resolution and accelerated graphics via graphics enabler yes!
a side note, after i got the graphics working, the hackintosh would not shutdown, only restart. after working on it for another hour, i removed the pci sata raid card and i was able to shut down. adding it back in, and it would reboot whenever i would try to shutdown. switching to pci root 0 would allow me to shutdown, but would hose the graphics back to 64mb vram.
finally i realized i did not have the kext for that raid card installed, downloaded them from the silicon image website and presto.
full graphics and able to shutdown the machine without it rebooting and it was reading the sata raid card. i'm on my 5th hackintosh and every one has had its challenges, but it's never been as simple and straightforward as it today, thanks in part to this community and site.