Planning for S1070 for Windows 7 Need advice on AMD Motherboards with NVIDIA Chipsets

I’m trying to find a Motherboard that supports the below AMD Processor, and supports the NVIDIA Chipset. But as AMD, whom I prefer over Intel, has purchased ATI, it seems likely that AMD Motherboards will be more and more uncommon with NVIDIA Chipsets.

Here’s the processor,

AMD Phenom II X4 940 Deneb 3.0GHz Socket AM2+ 125W Quad-Core Black Edition
Hyper Transports 3600MHz
L1 Cache 4 x 128KB
L2 Cache 4 x 512KB
L3 Cache 6MB
Manufacturing Tech 45 nm
64 bit Support 32 and 64 bit Support
Voltage 0.875-1.5V
Thermal Design Power 125W
Cooling Device Heatsink and Fan included
Warranty Parts & Labor, 3 years limited

I’d like to get 2 of these if there’s a Motherboard that supports it and a large amount of DDR3 Memory.

But I cannot find on or any of the NVIDIA Retailers, one that supports this Processor and the NVIDIA Chipset.

I also cannot find a price for the S1070 Rackmount, which I want to use with this.

What would be the recommended Graphics Card to install for the highest performance Rendering, while using the GPU cores, which I hear Blender will have a driver for and supports.