Will my motherboard and video card work together?

Your motherboard supports any PCI-e graphics card. So pretty much anything relevant to today it supports.

It has little to do with your motherboard supports it, and much more to do with if your power supply does.

For a 6850 or a GTX 560 any 450w+ power supply of decent built (Corsair, Antec, Seasonic, XFX, Silverstone, PC Power and Cooling, and some OCZ and Cooler Masters), will suffice.

The 560 Ti is a better card than the 6850......the 6950 and 560 Ti are probably better matched than any two cards I can remember from the competing camps in a single card configuration. Both are available in factory OC'd models which are at or very close in price to the reference cards.

When paired up however, the factory OC'd 560 Ti's in SLI have about a 100 fps advantage over 6950's in CF.

http://www.nvidia.com/object/product-geforce-gtx-560ti-...

Minimum Recommended System Power (W) 500 W

There is no real cost savings below 650 watts when buying decent PSU's. Tier 1 PSU's (Antec SG, Antec CP, Corsair HX and AX, Seasonic X series, etc) can carry a perty price tag, but there's a lot of very good tier 2 PSU's (read that as 9.5 jonnyguru performance rating) available right now.... the Corsair TX650 V2, Antec HCP, XFX Core Edition, etc.

The XFX Core Editions though have maintained a significant cost advantage over the competition for several months. If ya thinking ya gonna stick forever w/ a single GFX card, I'd get the XFX Core Edition 650 ....think ya might add a 2nd GFX card someday, then get the 850 .... ya could get the 750 but when ya see the $5 price difference, the 850 makes more sense

$60 650W http://www.newegg.com/Product/Product.aspx?Item=N82E168...
$90 850W http://www.newegg.com/Product/Product.aspx?Item=N82E168...

If ya can find anything cheaper in those size ranges, it's perty safe bet right now that it won't score a 9.5 at jonnyguru.com

I am actually thinking about buying 2 560 Ti's and running them Sli, just waiting on my 2nd motherboard from newegg, since i found out the ASrock motherboard was actually DOA :\

560ti's in SLI are a great set up , once you get your 2nd mobo I say go for it and enjoy.