Drop the SSD and CPU cooler. Its a waste under a tight budget.
This would be my suggestion.
Important that its a much higher quality PSU.
Much better graphics card.
PCPartPicker part list:
http://pcpartpicker.com/p/3OL6c
Price breakdown by merchant: http://pcpartpicker.com/p/3OL6c/by_merchant/
Benchmarks: http://pcpartpicker.com/p/3OL6c/benchmarks/
CPU: Intel Core i5-4570 3.2GHz Quad-Core Processor ($189.96 @ SuperBiiz)
Motherboard: ASRock H87 Pro4 ATX LGA1150 Motherboard ($87.49 @ Amazon)
Memory: G.Skill Ares Series 8GB (2 x 4GB) DDR3-1600 Memory ($69.99 @ Newegg)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($54.43 @ OutletPC)
Video Card: MSI Radeon R9 280 3GB TWIN FROZR Video Card ($200.00 @ Newegg)
Case: Rosewill Challenger-U3 ATX Mid Tower Case ($39.99 @ Newegg)
Power Supply: XFX 550W 80+ Bronze Certified ATX Power Supply ($49.99 @ NCIX US)
Optical Drive: Asus DRW-24F1ST DVD/CD Writer ($14.99 @ Newegg)
Total: $706.84
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2014-05-22 07:48 EDT-0400)