So I'm building a gaming pc in the summer because school will be over and I want to know what I should do to improve or not. I am new to pc building so please bear with me 
PCPartPicker part list / Price breakdown by merchant / Benchmarks
CPU: Intel Core i5-4670K 3.4GHz Quad-Core Processor ($234.98 @ SuperBiiz)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.99 @ Micro Center)
Motherboard: Gigabyte GA-Z87X-D3H ATX LGA1150 Motherboard ($143.98 @ SuperBiiz)
Memory: GeIL EVO POTENZA 8GB (2 x 4GB) DDR3-1600 Memory ($79.99 @ Newegg)
Storage: Samsung 840 Pro Series 128GB 2.5" Solid State Disk ($114.99 @ Micro Center)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($54.44 @ Amazon)
Video Card: MSI GeForce GTX 770 2GB TWIN FROZR Video Card ($319.99 @ Amazon)
Case: Fractal Design Define R4 (Black Pearl) ATX Mid Tower Case ($99.99 @ Micro Center)
Power Supply: EVGA SuperNOVA NEX750B BRONZE 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($59.99 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($16.99 @ Newegg)
Operating System: Microsoft Windows 8.1 - 64-bit (OEM) (64-bit) ($94.98 @ OutletPC)
Total: $1244.32
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-05-07 10:41 EDT-0400)
I'm trying to keep it lower than $1300 USD. Comments are appreciated. Thanks!

PCPartPicker part list / Price breakdown by merchant / Benchmarks
CPU: Intel Core i5-4670K 3.4GHz Quad-Core Processor ($234.98 @ SuperBiiz)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.99 @ Micro Center)
Motherboard: Gigabyte GA-Z87X-D3H ATX LGA1150 Motherboard ($143.98 @ SuperBiiz)
Memory: GeIL EVO POTENZA 8GB (2 x 4GB) DDR3-1600 Memory ($79.99 @ Newegg)
Storage: Samsung 840 Pro Series 128GB 2.5" Solid State Disk ($114.99 @ Micro Center)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($54.44 @ Amazon)
Video Card: MSI GeForce GTX 770 2GB TWIN FROZR Video Card ($319.99 @ Amazon)
Case: Fractal Design Define R4 (Black Pearl) ATX Mid Tower Case ($99.99 @ Micro Center)
Power Supply: EVGA SuperNOVA NEX750B BRONZE 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($59.99 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($16.99 @ Newegg)
Operating System: Microsoft Windows 8.1 - 64-bit (OEM) (64-bit) ($94.98 @ OutletPC)
Total: $1244.32
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-05-07 10:41 EDT-0400)
I'm trying to keep it lower than $1300 USD. Comments are appreciated. Thanks!