Here is my build for a very low priced customac:
Motherboard: GIGABYTE GA-H61M-DS2
CPU: Intel Core i3 - 3210
GPU: Nvidia 8600GT
RAM: Kingston DDR3-1333 8GB
Mac OS: 10.8
All I did was use unibeast to make a bootable USB and install the Mac OS. Then I used multibeast to set "PCIRootUID = 1". Everything is working fine except the sleep mode; the hackintosh does not wake up once its in sleep mode. I tried a few solutions but haven't been able to make it work yet.
tonymacx86.com was of enormous help. It is the best place to start if you're new in the hackintosh community.