PCPartPicker part list:
http://pcpartpicker.com/p/rmmcD3
Price breakdown by merchant: http://pcpartpicker.com/p/rmmcD3/by_merchant/
CPU: Intel Core i5-4460 3.2GHz Quad-Core Processor ($165.99 @ SuperBiiz)
Motherboard: MSI H81M-P33 Micro ATX LGA1150 Motherboard ($42.89 @ OutletPC)
Memory: Mushkin Silverline 8GB (2 x 4GB) DDR3-1600 Memory ($34.99 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($49.89 @ OutletPC)
Video Card: Gigabyte GeForce GTX 960 4GB Video Card ($219.99 @ Newegg)
Power Supply: XFX TS 550W 80+ Bronze Certified ATX Power Supply ($51.99 @ Newegg)
Operating System: Microsoft Windows 10 Home OEM (64-bit) ($94.89 @ OutletPC)
Total: $660.63
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-09-25 20:25 EDT-0400
I think this will give you the best price to performance, you could get the ram in one dem so that you could upgrade to 16gb later.