I wouldn't us the ram fro ykki,1600mhz@cas11 is too high latency's,for 1600mhz ram would i not go over cas9.
For this card you already have something like this,
PCPartPicker part list /
Price breakdown by merchant
CPU: Intel Core i3-4150 3.5GHz Dual-Core Processor ($104.88 @ OutletPC)
Motherboard: ASRock Z97 PRO3 ATX LGA1150 Motherboard ($80.98 @ Newegg)
Memory: G.Skill Sniper 8GB (2 x 4GB) DDR3-1600 Memory ($62.98 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($51.88 @ OutletPC)
Case: Antec Eleven Hundred V2 ATX Mid Tower Case ($49.99 @ NCIX US)
Power Supply: Rosewill Capstone 450W 80+ Gold Certified ATX Power Supply ($49.99 @ Newegg)
Total: $400.70
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-01-29 10:08 EST-0500
Another good psu,but for these specs way overkill,
http://pcpartpicker.com/part/evga-power-supply-110b20750vr
when upgrading to a high end card would it be a good choice.Should survive many systems.
The 450watt capstone should be able to power a gtx 960 (1x6pin pcie needed) though with an i3 or i5 that couldn't be overclocked.
Other cheaper and decent case,
http://pcpartpicker.com/part/cooler-master-case-nse400kkn2
Other difference between motherboards can be the soundchip for instance,the next has a very nice one,but is just out of budget with the parts like i chose them,
http://pcpartpicker.com/part/asrock-motherboard-h97performance
it would fit in with the cooler master case or another with the same price tag.
Memory/ram is also something that differs,more speed what it can take i mean,H97 boards can use up to 1600mhz ram,a Z97 can take ram with speeds of even 3000mhz.The cpu needs to be able to handle that too,for the i3 is 1600mhz good enough,but with a I5 4690K could higher speeds work although would it very likely need to be overclocked when going over 2133mhz.
The ability to do sli for instance is another difference that more expensive motherboards might support (
Z97 and even not all of those like the one i chose for example does not support it) .The psu would need to be big enough as well and in the case of your gpu will it not work,it doesn't support sli anyway.