Need some help upgrading.

[Tte. Costa]

S. all Gents.
I plan to upgrade my Pc for CLoD and I need some advice.

Is this a good choice?
Procesadores Socket 1366
Intel® Core™ i7-960 Prozessor
4x 3200 MHz, 4x 256 kByte, 8192 kByte, Bloomfield

MoBo Socket 1366
GIGABYTE GA-X58A-UD3R Rev. 2.0
Intel® X58 Express, ATX, 4 PCIe 2.0 x16, SLI, Crossfire, 1366

Solid State Drive SATA de 2,5"
Corsair Force F120 2,5" SSD 120 GB
120,0 GB, 285 / 275 MB/s, € 1,62*

Módulos de memoria DDR3-1066
Kingston ValueRAM Tri-Kit DIMM 6 GB DDR3-1066
6144 MB, CL7 7-7, 3, PC3 8500


Arctic-Cooling Freezer Xtreme Rev.2
775, 939, AM2, AM2+, 1366, 1156, AM3, 1155, 60,7 m³/h, Todos los modelos


Or better this one?

Procesadores Socket 1366
Intel® Core™ i7-970 Prozessor
6x 3200 MHz, 6x 256 kByte, 12244 kByte, Gulftown

MoBo Socket 1366
GIGABYTE GA-X58A-UD3R Rev. 2.0
Intel® X58 Express, ATX, 4 PCIe 2.0 x16, SLI, Crossfire, 1366

Solid State Drive SATA de 2,5"
Corsair Force F120 2,5" SSD 120 GB
120,0 GB, 285 / 275 MB/s, € 1,62*

Módulos de memoria DDR3-1066
Kingston ValueRAM DIMM 12 GB DDR3-1066 Tri-Kit
12288 MB, CL7, 3, PC3 8500

Ventilador
Arctic-Cooling Freezer Xtreme Rev.2
775, 939, AM2, AM2+, 1366, 1156, AM3, 1155, 60,7 m³/h,


The GPU I´m thinking about is:
GIGABYTE GV-R699D5-4GD-B (AMD Radeon HD 6990 4096 MB 2x256 bits PCIe 2.0 x16)
But: As IL-2 CLoD don´t support SLI-Crossfire. Is this card with 2 GPU going to use only one?

Tx very much in advance.

Atte. Costa