Decent Gaming Build

Solution
GPU is overpriced, either wait for prices to go down or get the GTX 1050 ti. I would also buy the RAM in a set as it will work better. Also your motherboard is locked and you paired it with a unlocked CPU. Your also missing storage (SSD/HDD). Lastly do you already have a case, because it's missing from your build.

What model PSU do you have?

PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Core i5-7500 3.4GHz Quad-Core Processor ($187.89 @ OutletPC)
Motherboard: Gigabyte - GA-B250M-DS3H Micro ATX LGA1151 Motherboard ($69.89 @ OutletPC)
Memory: Team - Vulcan 16GB (2 x 8GB) DDR4-2400 Memory ($104.99 @ Newegg)
Storage: Western Digital - Caviar Blue...

WildCard999

Titan
Moderator
GPU is overpriced, either wait for prices to go down or get the GTX 1050 ti. I would also buy the RAM in a set as it will work better. Also your motherboard is locked and you paired it with a unlocked CPU. Your also missing storage (SSD/HDD). Lastly do you already have a case, because it's missing from your build.

What model PSU do you have?

PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Core i5-7500 3.4GHz Quad-Core Processor ($187.89 @ OutletPC)
Motherboard: Gigabyte - GA-B250M-DS3H Micro ATX LGA1151 Motherboard ($69.89 @ OutletPC)
Memory: Team - Vulcan 16GB (2 x 8GB) DDR4-2400 Memory ($104.99 @ Newegg)
Storage: Western Digital - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($48.44 @ OutletPC)
Video Card: EVGA - GeForce GTX 1050 Ti 4GB ACX 2.0 Video Card ($144.89 @ B&H)
Case: NZXT - S340 (Black) ATX Mid Tower Case ($69.99 @ B&H)
Power Supply: Corsair - CXM 550W 80+ Bronze Certified Semi-Modular ATX Power Supply ($37.99 @ Newegg)
Monitor: Acer - H236HLbid 23.0" 1920x1080 60Hz Monitor ($109.99 @ Newegg)
Keyboard: Cooler Master - Devastator II Wired Gaming Keyboard w/Optical Mouse ($26.88 @ OutletPC)
Total: $800.95
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-06-30 12:06 EDT-0400
 
Solution
good build. i would change one or two things. If your not overclocking, not much point in getting the 'k' version of the 6600 with that mobo. also, i'd get a matched set of dimms (not just two similar modules). Lastly for the extra 30 quid, i'd get the 6gb version of the GTX1060gb.
 

SoggyTissue

Estimable
Jun 27, 2017
1,029
0
2,960
you need a 550w-600w psu with that build to ensure that you can fit a 1080 if you get bored of the 1060.
wont comment much on the choice of 1060 gb as its well suited to 1080p gaming. more graphic memory if you plan to go 1440p