What should I change?

Solution
U gonna overclock the intel chip in future or gonna run it at stock speeds?
If u r going to oc then go with an asus z97-a mobo.
If u plan to run it at stock speed then instead of i5-4690k go with i5-4690 and a good h97 chipset mobo from asus and msi.
And again, since u r going with gtx 960, u dnt need those 750watts. Instead go with the 550watt psu from corsair, it'l b more than enough to run ur system and invest those saved dollars in a 60gb or 120gb ssd.
Good luck...
Dnt 4get 2 select d bst answer...
Where is the motherboard in your build? I don't see one.

Otherwise, it looks good in general, but the PSU in your build is not recommended due to horrible capacitors (PSU is tier 3 just based on that fact):

www.tomshardware.co.uk/forum/id-1804779/power-supply-unit-tier-list.html

Instead, get this PSU, much better quality:

http://pcpartpicker.com/part/evga-power-supply-110b20750vr

Also, consider an SSD for a boot drive.
 
PCPartPicker part list: http://pcpartpicker.com/p/R4g399
Price breakdown by merchant: http://pcpartpicker.com/p/R4g399/by_merchant/

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($227.99 @ SuperBiiz)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.98 @ NCIX US)
Motherboard: Gigabyte GA-Z97MX-Gaming 5 Micro ATX LGA1150 Motherboard ($118.75 @ Directron)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1866 Memory ($70.99 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($53.49 @ Directron)
Video Card: Asus GeForce GTX 960 2GB Video Card ($209.99 @ Amazon)
Case: Fractal Design Define R4 (Black Pearl) ATX Mid Tower Case ($83.98 @ Newegg)
Power Supply: Rosewill Capstone 750W 80+ Gold Certified ATX Power Supply ($79.99 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($19.78 @ Directron)
Total: $894.94
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-03-24 06:59 EDT-0400

Better psu and added a mobo, good build with nice upgrade paths.
 
U gonna overclock the intel chip in future or gonna run it at stock speeds?
If u r going to oc then go with an asus z97-a mobo.
If u plan to run it at stock speed then instead of i5-4690k go with i5-4690 and a good h97 chipset mobo from asus and msi.
And again, since u r going with gtx 960, u dnt need those 750watts. Instead go with the 550watt psu from corsair, it'l b more than enough to run ur system and invest those saved dollars in a 60gb or 120gb ssd.
Good luck...
Dnt 4get 2 select d bst answer...
 
Solution
PCPartPicker part list: http://pcpartpicker.com/p/KmmLnQ
Price breakdown by merchant: http://pcpartpicker.com/p/KmmLnQ/by_merchant/

CPU: Intel Core i5-4690K 3.5GHz Quad-Core Processor ($227.99 @ SuperBiiz)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.98 @ NCIX US)
Motherboard: ASRock Z97 Extreme3 ATX LGA1150 Motherboard ($98.99 @ Newegg)
Memory: G.Skill Ripjaws X Series 8GB (2 x 4GB) DDR3-1866 Memory ($70.99 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($53.49 @ Directron)
Video Card: EVGA GeForce GTX 960 4GB SuperSC ACX 2.0+ Video Card ($239.99 @ Amazon)
Case: Enermax OSTROG ATX Mid Tower Case ($39.99 @ Directron)
Power Supply: EVGA 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($59.99 @ NCIX US)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($19.78 @ Directron)
Total: $841.19
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-03-24 08:52 EDT-0400
 


He wanted the board to have SLI support in the future.
 


Friend wants to overclock, but also wants to upgrade to sli when he has the money for it.. What you reckon the PSU should be for sli?
 


Oh sorry.. It's the ASRock Extreme 3 Z97. The PSU I agree, needs to be changed, I'll see other options, but the one you listed was a good one. He said he doesn't need an SSD.. I guess he can upgrade later, if neccesary. Thanks!
 


He is more of a team green guy 😀 I guess you can't argue taste ..

 


Accidentally selected you as best solution.. welp.. i gues have that.. they need to stop making them the biggest button... i always press green to reply...

 




Apologies not sure why I didn't notice it when I was looking at mobo's good value board.