PCPartPicker part list:
http://pcpartpicker.com/p/jMGPrH
Price breakdown by merchant: http://pcpartpicker.com/p/jMGPrH/by_merchant/
CPU: Intel Core i5-6400 2.7GHz Quad-Core Processor ($189.99 @ Directron)
CPU Cooler: Arctic Cooling Freezer 7 Pro Rev.2 45.0 CFM Fluid Dynamic Bearing CPU Cooler ($19.98 @ OutletPC)
Motherboard: MSI Z170A PC MATE ATX LGA1151 Motherboard ($99.89 @ OutletPC)
Memory: Crucial Ballistix Sport 8GB (2 x 4GB) DDR4-2400 Memory ($54.99 @ Adorama)
Storage: Sandisk SSD PLUS 240GB 2.5" Solid State Drive ($69.99 @ Amazon)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($52.33 @ OutletPC)
Video Card: MSI Radeon R9 390 8GB Video Card ($329.98 @ SuperBiiz)
Case: Corsair SPEC-01 RED ATX Mid Tower Case ($49.99 @ Newegg)
Power Supply: EVGA 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($80.99 @ SuperBiiz)
Optical Drive: Asus DRW-24B1ST/BLK/B/AS DVD/CD Writer ($16.45 @ OutletPC)
Operating System: Microsoft Windows 7 Home Premium SP1 OEM (64-bit) ($88.99 @ NCIX US)
Total: $1053.57
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-10-06 11:11 EDT-0400
If you really want the overclockable cpu you are going to need to drop something most likely the SSD.