I don't know if you need to buy a monitor, windows, keyboard, mouse, etc with that $2000 so I left so extra cash to spend on those things.
PCPartPicker part list:
http://pcpartpicker.com/p/3fkFA
Price breakdown by merchant: http://pcpartpicker.com/p/3fkFA/by_merchant/
CPU: Intel Core i7-4770K 3.5GHz Quad-Core Processor ($329.99 @ SuperBiiz)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler ($33.98 @ SuperBiiz)
Motherboard: Gigabyte GA-Z87X-UD4H ATX LGA1150 Motherboard ($159.99 @ Micro Center)
Memory: G.Skill Ripjaws X Series 16GB (2 x 8GB) DDR3-1866 Memory ($131.75 @ Newegg)
Storage: Crucial M500 240GB 2.5" Solid State Disk ($109.99 @ Amazon)
Storage: Toshiba 2TB 3.5" 7200RPM Internal Hard Drive ($74.99 @ Newegg)
Video Card: Gigabyte GeForce GTX 780 Ti 3GB Video Card ($649.99 @ Amazon)
Power Supply: SeaSonic 750W 80+ Gold Certified Fully-Modular ATX Power Supply ($155.98 @ Newegg)
Total: $1640.68
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-03-23 22:43 EDT-0400)
AMD CPUshas weak cores than Intel CPUs.. Intel have much stable performance per core than the AMD CPUs.. AMDs are best suitable for budget gaming PCs..