Motherboard and Power Sup for this configuration Help!

Hello everybody,

I'm buying my new PC. I've chosen all the system, except the motherboard and the power supply. I need help on this.

CPU: i7-3930k
RAM: G.SKILL Ripjaws DDR3 2133 (PC3 17000): Total 16 Gb
SSD: Intel 520 240 Gb
GPU: 2 x XFX HD 7970 Black Edition DD

I'm having a hard time trying to find a decent MB and power supply for this configuration.

Approximate Purchase Date: Next week

Preferred Website(s) for Parts: Newegg

Country: USA

Overclocking: Definitely yes

SLI or Crossfire: Yes

Monitor Resolution: Full HD

If you guys suggest any change in the configuration above, be my guest!

Thanks!