Ok tried to hit $900 with parts and left some money for an OS not sure if you need a copy or not, it has a 4670k and a Z series board so if you want to get into OC you have the option down the line (also got a high quality PSU so you shouldnt have to worry about anything there)
PCPartPicker part list:
http://pcpartpicker.com/p/p2nzFT
Price breakdown by merchant: http://pcpartpicker.com/p/p2nzFT/by_merchant/
CPU: Intel Core i5-4670K 3.4GHz Quad-Core Processor ($219.99 @ Amazon)
CPU Cooler: Cooler Master Hyper TX3 54.8 CFM Sleeve Bearing CPU Cooler ($19.98 @ OutletPC)
Motherboard: Gigabyte GA-Z87-DS3H ATX LGA1150 Motherboard ($96.78 @ OutletPC)
Memory: G.Skill Ripjaws Series 8GB (2 x 4GB) DDR3-1600 Memory ($73.99 @ Newegg)
Storage: Kingston SSDNow V300 Series 120GB 2.5" Solid State Drive ($55.98 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($52.91 @ OutletPC)
Video Card: Gigabyte Radeon R9 280X 3GB WINDFORCE Video Card ($279.99 @ Newegg)
Case: Corsair SPEC-01 RED ATX Mid Tower Case ($34.99 @ NCIX US)
Power Supply: Antec High Current Gamer 620W 80+ Bronze Certified Semi-Modular ATX Power Supply ($59.99 @ NCIX US)
Optical Drive: LG GH24NSB0 DVD/CD Writer ($14.99 @ NCIX US)
Operating System: Microsoft Windows 8.1 (OEM) (64-bit) ($89.98 @ OutletPC)
Total: $999.57
Prices include shipping, taxes, and discounts when available