I know you want more ram, but keep in mind that 8GB is sufficient for all games atm, you could also upgrade ram later if you want, anyway since you asked for it here is the new build:
PCPartPicker part list:
http://pcpartpicker.com/p/3HrJd
Price breakdown by merchant: http://pcpartpicker.com/p/3HrJd/by_merchant/
Benchmarks: http://pcpartpicker.com/p/3HrJd/benchmarks/
CPU: Intel Core i5-4670 3.4GHz Quad-Core Processor ($204.99 @ Amazon)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($27.99 @ NCIX US)
Motherboard: ASRock Z87 Extreme4 ATX LGA1150 Motherboard ($124.99 @ Newegg)
Memory: G.Skill Ripjaws X Series 16GB (2 x 8GB) DDR3-1866 Memory ($141.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($54.43 @ OutletPC)
Video Card: MSI GeForce GTX 770 2GB TWIN FROZR Video Card ($313.99 @ SuperBiiz)
Case: Zalman Z9 Plus ATX Mid Tower Case ($65.95 @ Amazon)
Power Supply: SeaSonic 620W 80+ Bronze Certified Semi-Modular ATX Power Supply ($83.99 @ SuperBiiz)
Total: $1018.32
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-05-10 14:22 EDT-0400)
The motherboard is about the same as the Gigabyte and is also very good for overclocking the i5 4670K to 4.5Ghz.