Gaming pc build

[Slash16]

I'm going to build a gaming pc
here are the specs

Cpu intel i5 4670k
mobo msi z87 gd 65
gpu msi gtx 970
ram corcorsair vengeance 1 6gb 1600
hdd wd caviar 1tb
Cooler nzxt kraken x60
Case nzxt h440

1) suggest me a good psu
I mean how many watt will be required
2) suggest me a good hd led monitor 24/27 under $250

 

[nucolos]

550w should be enough, xfx psu's are really good and not expensive.
For $300 you can buy a 1440p monitor on amazon.