here a possible suggestion just to add another option though it get's beaten by Idontunderstand due to better price.
only reason I added a non k cpu on z87 mainboard is to spare the trouble later of replacing mainboard cpu and windows when the i5 will get weak and just add a i7 and oc it. as well sli/crossfire support.
hope I didn't go overboard with the price.
PCPartPicker part list:
http://pcpartpicker.com/p/35jnR
Price breakdown by merchant: http://pcpartpicker.com/p/35jnR/by_merchant/
Benchmarks: http://pcpartpicker.com/p/35jnR/benchmarks/
CPU: Intel Core i5-4440 3.1GHz Quad-Core Processor ($174.29 @ Amazon)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($29.98 @ OutletPC)
Motherboard: ASRock Z87 Extreme4 ATX LGA1150 Motherboard ($119.99 @ Microcenter)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-2133 Memory ($79.99 @ Newegg)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($57.99 @ NCIX US)
Video Card: Asus Radeon R9 280X 3GB Video Card ($328.99 @ Staples)
Case: Corsair 200R ATX Mid Tower Case ($57.99 @ Microcenter)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($59.99 @ Newegg)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($19.98 @ OutletPC)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) ($89.98 @ OutletPC)
Total: $1019.17
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-03-06 17:21 EST-0500)