Custom Gaming PC build comparison

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($238.99 @ Amazon)
CPU Cooler: Corsair H100i 77.0 CFM Liquid CPU Cooler ($97.16 @ Amazon)
Motherboard: Asus MAXIMUS VII HERO ATX LGA1150 Motherboard ($204.99 @ NCIX US)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory ($82.99 @ Newegg)
Storage: Crucial MX100 512GB 2.5" Solid State Drive ($212.99 @ Amazon)
Storage: Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($82.99 @ NCIX US)
Video Card: Asus GeForce GTX 780 3GB DirectCU II Video Card ($480.00 @ Newegg)
Case: NZXT H440 (Red/Black) ATX Mid Tower Case ($119.99 @ Newegg)
Power Supply: Corsair 760W 80+ Platinum Certified Fully-Modular ATX Power Supply ($184.99 @ Amazon)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) ($99.98 @ OutletPC)
Monitor: Asus VG248QE 144Hz 24.0" Monitor ($249.23 @ Amazon)
Keyboard: Corsair Vengeance K70 Wired Gaming Keyboard ($114.99 @ NCIX US)
Mouse: Logitech G500 Wired Laser Mouse ($72.78 @ SuperBiiz)
Headphones: Razer Kraken 7.1 Channel Headset ($99.99 @ Amazon)
Total: $2326.06
Prices include shipping, taxes, and discounts when available

Don't have to spend all that money.
 
Solution
I would go back to the Swiftech H220 liquid cooler. It is noticeably better than the H100i.

The i5 4690k is great for gaming with 1 GPU. But if you plan to go Crossfire or SLI later, get the i7 4790k instead. i7 scales better with multiple GPUs.

256GB SSD is plenty for boot/OS with games installed on a 2nd 1-2 TB HDD.