This is what I would do (without an OS)
The keyboard, mouse and headset are more personal preference so feel free to change them
PCPartPicker part list /
Price breakdown by merchant /
Benchmarks
CPU: Intel Core i5-4670K 3.4GHz Quad-Core Processor ($319.00 @ PC Force)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($65.69 @ Ascent Technology)
Motherboard: ASRock Z87 Pro4 ATX LGA1150 Motherboard ($191.00 @ Paradigm PCs)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1600 Memory ($113.85 @ PB Technologies)
Storage: Western Digital Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive ($87.98 @ Aquila Technology)
Video Card: Gigabyte GeForce GTX 760 2GB Video Card ($409.95 @ Computer Lounge)
Case: Fractal Design Arc XL ATX Mid Tower Case ($53.36 @ Ascent Technology)
Power Supply: Antec High Current Gamer 620W 80+ Bronze Certified Semi-Modular ATX Power Supply ($150.42 @ Aquila Technology)
Optical Drive: LG GH24NSB0 DVD/CD Writer ($45.68 @ Ascent Technology)
Monitor: Asus VE228H 21.5" Monitor ($209.95 @ Computer Lounge)
Keyboard: Corsair Raptor K30 Wired Gaming Keyboard ($99.95 @ Computer Lounge)
Mouse: Cooler Master Recon Wired Optical Mouse ($74.74 @ PB Technologies)
Headphones: Logitech G930 7.1 Channel Headset ($159.95 @ Computer Lounge)
Total: $1981.52
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-03-18 21:27 NZDT+1300)