First gaming build, help appreciated

Give me a sec I'll post a revised build

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+1

Nice build here

I will show you 3 examples.

Cheap Gaming Build:

PCPartPicker part list: http://pcpartpicker.com/p/3qgWC
Price breakdown by merchant: http://pcpartpicker.com/p/3qgWC/by_merchant/
Benchmarks: http://pcpartpicker.com/p/3qgWC/benchmarks/

CPU: AMD Athlon X4 750K 3.4GHz Quad-Core Processor ($79.98 @ OutletPC)
Motherboard: ASRock FM2A88M-HD+ Micro ATX FM2+ Motherboard ($64.99 @ Micro Center)
Memory: GeIL EVO POTENZA 8GB (2 x 4GB) DDR3-1600 Memory ($62.99 @ Newegg)
Storage: Western Digital Caviar Blue 500GB 3.5" 7200RPM Internal Hard Drive ($49.58 @ Amazon)
Video Card: MSI Radeon R7 260X 2GB Video Card ($119.99 @ Amazon)
Case: Cougar Solution (Black) ATX Mid Tower Case ($36.99 @ Mwave)
Power Supply: Antec High Current Gamer 520W 80+ Bronze Certified Semi-Modular ATX Power Supply ($78.99 @ NCIX US)
Optical Drive: Asus DRW-24F1ST DVD/CD Writer ($14.99 @ Newegg)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($98.99 @ SuperBiiz)
Total: $607.49
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-04-12 00:31 EDT-0400)


Best bang for the buck build:

PCPartPicker part list: http://pcpartpicker.com/p/3qhae
Price breakdown by merchant: http://pcpartpicker.com/p/3qhae/by_merchant/
Benchmarks: http://pcpartpicker.com/p/3qhae/benchmarks/

CPU: AMD FX-6300 3.5GHz 6-Core Processor ($109.99 @ Amazon)
Motherboard: ASRock 990FX Extreme3 ATX AM3+/AM3 Motherboard ($94.99 @ Newegg)
Memory: GeIL EVO POTENZA 8GB (2 x 4GB) DDR3-1600 Memory ($62.99 @ Newegg)
Storage: Seagate 2TB 3.5" 7200RPM Hybrid Internal Hard Drive ($107.99 @ Amazon)
Video Card: Zotac GeForce GTX 770 2GB Video Card ($327.99 @ SuperBiiz)
Case: Cougar Solution (Black) ATX Mid Tower Case ($36.99 @ Mwave)
Power Supply: SeaSonic S12II 620W 80+ Bronze Certified ATX Power Supply ($73.98 @ SuperBiiz)
Optical Drive: Asus DRW-24F1ST DVD/CD Writer ($14.99 @ Newegg)
Operating System: Microsoft Windows 7 Home Premium SP1 (OEM) (64-bit) ($98.99 @ SuperBiiz)
Total: $928.90
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-04-12 00:41 EDT-0400)


The High End Build

PCPartPicker part list: http://pcpartpicker.com/p/3qhvZ
Price breakdown by merchant: http://pcpartpicker.com/p/3qhvZ/by_merchant/
Benchmarks: http://pcpartpicker.com/p/3qhvZ/benchmarks/

CPU: Intel Core i7-4770K 3.5GHz Quad-Core Processor ($319.99 @ Newegg)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.99 @ Micro Center)
Motherboard: ASRock Fatal1ty Z87 Killer ATX LGA1150 Motherboard ($119.99 @ Newegg)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1600 Memory ($64.99 @ Newegg)
Storage: Samsung 840 EVO 250GB 2.5" Solid State Disk ($159.99 @ Newegg)
Storage: Seagate Barracuda Green 2TB 3.5" 5900RPM Internal Hard Drive ($82.45 @ Amazon)
Video Card: XFX Radeon R9 290 4GB Video Card ($439.99 @ Amazon)
Case: NZXT Phantom (Black) ATX Full Tower Case ($119.99 @ Best Buy)
Power Supply: Corsair Enthusiast 750W 80+ Bronze Certified ATX Power Supply ($119.99 @ TigerDirect)
Optical Drive: Asus DRW-24F1ST DVD/CD Writer ($14.99 @ Newegg)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) ($89.99 @ NCIX US)
Total: $1562.35
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-04-12 00:54 EDT-0400)

Nothing's wrong with that case, I just chose the Phantom because it's at a good price right now. Also that PSU should be sufficient for dual 780s if you don't plan to overclock, but if you do I would get a 850 just to be safe.