Take a look.
CPU : Intel Core i5-4590 3.3GHz Quad-Core - $189.99
CPU Cooler : Stock CPU Cooler (Bundled with CPU) - Free
Motherboard : Gigabyte GA-H81M-S2H Micro ATX LGA1150 - $44.99
RAM : Kingston 8GB (2 x 4GB) DDR3-1600 Memory - $33.99
Solid State Drive : Crucial BX100 250GB 2.5" Solid State Drive - $78.99
Hard Drive : Seagate Barracuda 1TB 3.5" 7200RPM - $43.99
Graphics Card : PowerColor Radeon R9 390 8GB PCS+ - $314.98
Power Supply : EVGA 500W 80+ Bronze Certified ATX - $39.99
Price : $746.92
What do you guys think. Can you say which part should I change and with what.