Is this build good?

Solution
Fine, in general. I'd want faster memory to support the overclock and would absolutely! want a more robust PSU. The Seasonic semi-modular 550W G series is cheaper and better.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($284.50 @ shopRBC)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($34.89 @ DirectCanada)
Motherboard: Gigabyte GA-Z97X-SLI ATX LGA1150 Motherboard ($134.99 @ NCIX)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-2133 Memory ($79.16 @ DirectCanada)
Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive ($134.99 @ Canada...
Fine, in general. I'd want faster memory to support the overclock and would absolutely! want a more robust PSU. The Seasonic semi-modular 550W G series is cheaper and better.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($284.50 @ shopRBC)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($34.89 @ DirectCanada)
Motherboard: Gigabyte GA-Z97X-SLI ATX LGA1150 Motherboard ($134.99 @ NCIX)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-2133 Memory ($79.16 @ DirectCanada)
Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive ($134.99 @ Canada Computers)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($58.98 @ DirectCanada)
Video Card: MSI GeForce GTX 970 4GB Twin Frozr V Video Card ($419.99 @ NCIX)
Case: Thermaltake Chaser A31 ATX Mid Tower Case ($79.93 @ DirectCanada)
Power Supply: SeaSonic G 550W 80+ Gold Certified Semi-Modular ATX Power Supply ($82.24 @ Newegg Canada)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) ($99.99 @ Canada Computers)
Case Fan: Corsair Air Series AF140 Quiet Edition 67.8 CFM 140mm Fan ($17.82 @ DirectCanada)
Case Fan: Corsair Air Series AF140 Quiet Edition 67.8 CFM 140mm Fan ($17.82 @ DirectCanada)
Case Fan: Corsair Air Series AF140 Quiet Edition 67.8 CFM 140mm Fan ($17.82 @ DirectCanada)
Monitor: BenQ GW2255 60Hz 21.5" Monitor ($129.25 @ Vuugo)
Keyboard: Cooler Master CM Storm Devastator Gaming Bundle Wired Gaming Keyboard w/Optical Mouse ($34.99 @ DirectCanada)
Total: $1627.36
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-03-22 11:04 EDT-0400
 
Solution
PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($284.50 @ shopRBC)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($34.89 @ DirectCanada)
Motherboard: Asus Z97-A ATX LGA1150 Motherboard ($178.98 @ DirectCanada)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-2133 Memory ($79.16 @ DirectCanada)
Storage: Samsung 850 EVO-Series 250GB 2.5" Solid State Drive ($134.99 @ Canada Computers)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($64.75 @ Vuugo)
Video Card: MSI GeForce GTX 970 4GB Twin Frozr V Video Card ($434.98 @ Newegg Canada)
Case: Corsair 300R ATX Mid Tower Case ($74.99 @ NCIX)
Power Supply: EVGA 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($99.99 @ Canada Computers)
Optical Drive: Samsung SH-224DB/BEBE DVD/CD Writer ($18.98 @ DirectCanada)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) ($99.99 @ Canada Computers)
Monitor: BenQ GL2460HM 60Hz 24.0" Monitor ($175.50 @ Vuugo)
Keyboard: Cooler Master CM Storm Devastator Gaming Bundle Wired Gaming Keyboard w/Optical Mouse ($34.99 @ NCIX)
Total: $1716.69
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-03-22 11:41 EDT-0400