As a phantom owner I agree.
Also that Sabertooth board is a dust trap and it gets hot. You should get the ASRock P67 Extreme6 or 4. G.skill Ripjaws would be good but i'd search the Overclock.net marketplace for some RAM. Theres always good RAM going in and out of there.
Also if you can get it i'd get the GAinward GTX 580 Phantom. Those are nasty!