Will this require liquid cooling?

Solution
Same build price, but assuming this is for gaming, here one that would give you the best performance

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-6600K 3.5GHz Quad-Core Processor ($249.89 @ OutletPC)
CPU Cooler: CRYORIG H7 49.0 CFM CPU Cooler ($34.50 @ Newegg)
Motherboard: ASRock Z170M Extreme4 Micro ATX LGA1151 Motherboard ($114.99 @ Amazon)
Memory: Corsair Vengeance LPX 16GB (2 x 8GB) DDR4-3000 Memory ($89.89 @ OutletPC)
Storage: Samsung 850 EVO-Series 120GB 2.5" Solid State Drive ($64.88 @ OutletPC)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($49.89 @ OutletPC)...
Will you be overclocking the processor ? Even if you will, the Cooler Master Hyper 212 EVO is a decent enough cooler to suffice. I like all the components of your build..Looking excellent to me- great:
cpu
gpu
storage
psu
cooler
Case
Memory
Monitors
ETC.....
You are good to go....
 
Same build price, but assuming this is for gaming, here one that would give you the best performance

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-6600K 3.5GHz Quad-Core Processor ($249.89 @ OutletPC)
CPU Cooler: CRYORIG H7 49.0 CFM CPU Cooler ($34.50 @ Newegg)
Motherboard: ASRock Z170M Extreme4 Micro ATX LGA1151 Motherboard ($114.99 @ Amazon)
Memory: Corsair Vengeance LPX 16GB (2 x 8GB) DDR4-3000 Memory ($89.89 @ OutletPC)
Storage: Samsung 850 EVO-Series 120GB 2.5" Solid State Drive ($64.88 @ OutletPC)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($49.89 @ OutletPC)
Video Card: Zotac GeForce GTX 980 Ti 6GB AMP! Omega Edition Video Card ($644.99 @ SuperBiiz)
Case: Corsair Carbide Series 88R MicroATX Mid Tower Case ($44.99 @ Newegg)
Power Supply: EVGA SuperNOVA GS 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($89.98 @ Mac Mall)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($17.78 @ OutletPC)
Operating System: Microsoft Windows 10 Home OEM (64-bit) ($89.99 @ NCIX US)
Monitor: Asus VG248QE 144Hz 24.0" Monitor ($248.00 @ Amazon)
Monitor: Dell E2414H 24.0" Monitor ($134.99 @ Adorama)
Total: $1874.76
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-02-21 16:38 EST-0500

And take a look at the monitor I've replaced the Acer one with, since I assume you'd be using it as a secundary? I recommend the Dell for the price and the monitors will look better next to each other as they're both 24 inch.
 
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