I'm buying new computer parts and need your help!

[niopia]

So far I've selected these parts:
-Gigabyte R9 390
-Intel Core i7 4790 (BX80646I74790)
-Gigabyte motherboard GA-Z97-D3H

I'd like your opinion on this selection and it's compatibility and would also like to know how much power supply I need for it.

Thanks in advance

 

[tothergnome]

http://pcpartpicker.com/p/7c67cf
What I Added:
CPU Cooler- Corsair H100i GTX- I chose this so you can cool down a very hot demanding CPU
Memory-16GB HyperX Fury- 16GB of RAM is future proofed and can be ready for future proofing
Storage-250 GB SDD & 1TB HDD- An SDD to make your favourite programs run fast and a large HDD
Case-NZXT S340- A beautiful case to match up with your Black Coloured Theme
PSU-600W Corsair Semi Modular- A good PSU which is semi modular for wire management and you could still upgrade your PC for 100W
Operating System- Windows 10- The newest operating System
Well hope you liked your build

 

[niopia]

http://pcpartpicker.com/p/7c67cf
What I Added:
CPU Cooler- Corsair H100i GTX- I chose this so you can cool down a very hot demanding CPU
Memory-16GB HyperX Fury- 16GB of RAM is future proofed and can be ready for future proofing
Storage-250 GB SDD & 1TB HDD- An SDD to make your favourite programs run fast and a large HDD
Case-NZXT S340- A beautiful case to match up with your Black Coloured Theme
PSU-600W Corsair Semi Modular- A good PSU which is semi modular for wire management and you could still upgrade your PC for 100W
Operating System- Windows 10- The newest operating System
Well hope you liked your build

Thank you so much