If your planning on a 970 build x58 is king. If your not planning on tri or quad sli, just get a 2600k with a p67 since you dont need the extra pci lanes, and save some moolah. But if your looking into i7 950, 960, well 2600k will give them a nice spanking. But like you said if money truly isn't an issue...then X58 Ftw. Also knowing what you want to do with the build might help. Anykind of video editing will be better on x58 with that triple channel ram to chew on.