I'm seeing a ~$700 to the door budget there, correct me if I'm wrong...
The A8 6600K is an APU, which means a chunk of what you're paying for there is the large iGPU. Combining it with a dGPU in this sort of build is a pointless redundancy. Pick a CPU that gives you better execution resources for the money.
Very few cheap motherboards are any good, in fact, in many cases they can't even guarantee stable operation (seen too many reports of non-stable operation or throttling during during stability testing at stock settings with cheap boards, especially cheap AM3+ and FM2+ boards). Power regulation and quality is one of the most important considerations in a computer, and the motherboard is covered in power regulation devices for the CPU, RAM, chipset, and other components than run <3.3V. In most computers, the 1st or 2nd largest voltage regulation device in terms of current delivery is found on the motherboard. You've probably heard people say "don't cheap out on the PSU, it's the most important part of a computer," well, that philosophy applies to all power regulation in the computer, and power regulation does not end with the PSU. A better motherboard is one of the key things that should differentiate your custom computer, from an eMachine that you could buy at walmart, otherwise, what's the point?
Dollar for dollar and decibel for decibel, liquid heatpipe coolers are superior in performance and reliability to nearly all AIOCLC's. Do not use an AIOCLC unless you need it to meet a form factor restriction. (they are handy in some ultra-compact ITX builds that have no room for a heatpipe cooler above the CPU). Using an expensive HSF on a cheap CPU is a poor value configuration.
---------
Here's a pair of much superior builds, both with lower to-the-door prices:
AMD:
PCPartPicker part list /
Price breakdown by merchant
CPU: AMD Athlon X4 860K 3.7GHz Quad-Core Processor ($78.99 @ NCIX US)
CPU Cooler: Arctic Cooling Freezer A11 74.0 CFM CPU Cooler ($22.99 @ Amazon)
Motherboard: Biostar Hi-Fi A88W 3D ATX FM2+ Motherboard ($83.99 @ Directron)
Memory: Crucial Ballistix Sport 8GB (2 x 4GB) DDR3-1600 Memory ($61.99 @ Adorama)
Storage: Crucial MX100 256GB 2.5" Solid State Drive ($94.99 @ Newegg)
Video Card: Asus Radeon R7 260X 2GB Video Card ($119.99 @ Directron)
Case: Corsair SPEC-01 RED ATX Mid Tower Case ($49.99 @ Newegg)
Power Supply: Rosewill Capstone 450W 80+ Gold Certified ATX Power Supply ($59.99 @ Amazon)
Operating System: Microsoft Windows 8.1 - 64-bit (OEM) (64-bit) ($92.00 @ B&H)
Wireless Network Adapter: Rosewill RNX-N150PCx 802.11b/g/n PCI Wi-Fi Adapter ($18.22 @ Amazon)
Total: $683.14
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-02-27 02:50 EST-0500
Intel:
PCPartPicker part list /
Price breakdown by merchant
CPU: Intel Core i3-4160 3.6GHz Dual-Core Processor ($119.99 @ NCIX US)
Motherboard: Biostar Hi-Fi H81S2 ATX LGA1150 Motherboard ($49.99 @ Amazon)
Memory: Crucial Ballistix Sport 8GB (2 x 4GB) DDR3-1600 Memory ($61.99 @ Adorama)
Storage: Crucial MX100 256GB 2.5" Solid State Drive ($94.99 @ Newegg)
Video Card: MSI GeForce GTX 750 Ti 2GB Video Card ($126.98 @ Newegg)
Case: Corsair SPEC-01 RED ATX Mid Tower Case ($49.99 @ Newegg)
Power Supply: Rosewill Capstone 450W 80+ Gold Certified ATX Power Supply ($59.99 @ Amazon)
Operating System: Microsoft Windows 8.1 - 64-bit (OEM) (64-bit) ($92.00 @ B&H)
Wireless Network Adapter: Rosewill RNX-N250PCe 802.11b/g/n PCI-Express x1 Wi-Fi Adapter ($17.10 @ Newegg)
Total: $673.02
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-02-27 02:56 EST-0500
The 860K has stronger performance in workloads that scale well across many cores, and can be overclocked, the i3-4160 has stronger performance in poorly threaded workloads and can not be overclocked. (the i3 will maintain superiority in single threaded performance regardless of whether you overclock the 860K).
For your intended use, both are viable, good choices. The i3 is argueably going to be faster than the 860K more often than the other way around for photoshop and gaming, but I don't think that either is necessarily a bad choice for the money.