Ok well here are my specs:

CPU: AMD Phenom2 x3 720
RAM: Kingston 4gb 1066
GPU: Inno3D GTX 260+
MOBO: GA-MA790GP-UD4H
CASE: Thermaltake Armor MX
DVD: Pioneer 216

I have been following this guide

I just don't know what kexts I should put into the extension folder for my current system. Thanks.