Ok, I have an Asus G72GX (Best Buy addition) with the Core 2 Duo P8700. I am considering upgrading my CPU to either a X9100 (Core 2 Extreme) or to a QE9300 (Core 2 Quad Extreme). I've heard of guys upgrading to the X9100 without much trouble and have heard of guys upgrading to the Q9000, but haven't heard of the QE9300 upgrade. Any thoughts?