The 900 MHz 560 Ti tops the 6950 and .... in SLI, even the CF'd 6970 Frozr ..... but unfortunately, you have not listed the Ti.....until ya 2nd post. And yes, on a cost per frame basis, the 900MHz is tops in the $200 ND UP category. The 6870 is tops in the < $200 category. and yes, the cables come w/ the PSU .... the cards usually do come w/ molex converters tho to be used if ya PSU don't have enuff connectors..
I'd really rather not drop the extra $50 for the 560 ti though (especially since the backstock one only comes with a 90 day warranty =p) so would the 6870 play all new games on medium settings for the next 2 years? Is the 560 ti worth it really? I'm not going to be playing crysis or anything.
I would go with the 560ti, and if you can't then the regular 560, simply because SLI has less pronounced microstuttering and better SLI driver support (these two points on SLI I am not getting from personal experience just from things I've read)
No. Get the 560 ti, you'll be very happy. I did a build for a guy with a GTX 570, only one step above the 560 ti, and honestly, when looking at benchmarks, at a lot of resolutions, the 570 was not that much ahead of the 560 ti. You will be fine with either card you choose.
Agreed. I've got an nvidia card also, and rock solid. In fact I've heard of with the ati cards than nvidia. A tech friend of mine has a 560 ti, only problem he had that I know of was when his memory cooler shorted his card and he had to rma it under warranty.