ati or nvidia for this set up?

[H3RBSKI]

so im looking at building a new gaming pc, after asking about on the forum ive settled for this mobo/cpu/ram combo.
now all i need to decide is nvidia or at?
Core i5-2500K 3.30GHz
Asrock Z68 Extreme4 Gen3 Intel Z68
Corsair XMS3 8GB

ive been suggested to go for the Sapphire ATI Radeon HD 6950 TOXIC 2048MB
but ive always been more of an nvidia fan.
ive read that the mother board im going with is sli only so not sure if i want to limit myself to just one card in the future.
im thinking about going for a gtx 580 or a gtx 570 depending how much i have spare.
what are your opinions? should i go ati or stick with nvidia? want to try and make this pc future proof.

 

[:(Rhodri:)]

There's no such thing as future proof with graphics cards I'm afraid, they're all good cards though. Personally I'd go with the 6950 over the 570 but would probably go with a 580 over that if it'd fit into budget. I don't think any boards are SLI only these days unless some things changed (I could be wrong, not kept up with mobos much).

Bare in mind that the ATI 7000 series is meant to be launching in the near future.

 

[mickyflinn]

Asrock Z68 Extreme4 Gen3 Intel Z68

2 x PCIe 3.0 x16 Slots, 1 x PCIe 2.0 x16 Slot, Supports AMD 3-Way CrossFireX™ and NVIDIA® Quad SLI™

 

[H3RBSKI]

ah fair enough, theres not much info about that board on this site and all other sites i found suggested it was sli only.
that was the only thing stopping me from going ati

 

[chigley]

Personally I'd put a single GTX 570 in there for now, then you can always add another and run them in SLI x8/x8 when one no longer cuts the mustard!