What kind of PSU and Mobo for 6970 XFire?

[zeliscar]

Hey guys! So i'm builiding a new machine with i5-2500k CPU.
I was gonna go with GA-P67-UD3 mobo and a Corsair TX650W PSU mostly because of my budget.
But since I'm planning to have 2x 6970 XFire pretty soon (just one at the start) I'm wondering if those 2 aren't good enough? I realise I probably need better PSU but don't know how many W and have no idea about the mobo!
Please help

 

[mnewsham]

650 watts should be fine, you can get 700 or 750 if you are really scared.

 

[mfenn]

Here's the chart that you need for the GPU power consumption. Note that you will generally only get four PCIe power connectors on 750W+ power supplies, but you can use Molex to PCIe power adapters with a 650W.

As for the mobo, I usually recommend something with a x8/x8 PCIe config for SLI/CFX. Check out the ASRock P67 Extreme4.