Hello all, I'm trying to assemble my first computer for gaming and I just feel unsure about ordering all of these parts to find out I made a costly error. All input would be greatly appreciated thank you. Tower : Thermaltake Level 10 Series Level 10 GTS Snow Edition White SECC ATX Mid Tower Computer Case Motherboard : GIGABYTE GA-X79-UD3 LGA 2011 Intel X79 SATA 6Gb/s USB 3.0 ATX Intel Motherboard CPU : i7-3820 Sandy Bridge-E 3.6GHz (3.8GHz Turbo Boost) LGA 2011 130W Quad-Core Desktop Processor BX80619i73820 Video Card : (SLI 2 of these) EVGA 01G-P3-1561-KR GeForce GTX 560 Ti FPB (Fermi) 1GB 256-bit GDDR5 PCI Express 2.0 x16 HDCP Ready SLI Support Video Card Memory : CORSAIR Vengeance 16GB (4 x 4GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model CMZ16GX3M4A1600C9B Hard Drive : Seagate Barracuda ST2000DM001 2TB 7200 RPM SATA 6.0Gb/s 3.5" Internal Hard Drive -Bare Drive Power Supply : CORSAIR Enthusiast Series TX750 V2 750W ATX12V v2.31/ EPS12V v2.92 80 PLUS BRONZE Certified Active PFC High Performance Power ... Operating System : Microsoft Windows 7 Home Premium SP1 64-bit - OEM CPU cooling : Intel BXRTS2011LC Liquid-cooled Thermal Solution For the LGA2011 Socket DVD-ROM : LITE-ON Black SATA DVD-ROM Drive Model iHDS118-04 - OEM Thank you!