I need help in chosing the right grapghic card and gaming monitor

[kolkoll]

Hello..
I want to build a x99 for gaming PC..
i7 5820k..
asus x99 deluxe..
corsair vengeance LPX 2666 16 GB..
Full tower case(corsair obsidian 750D or graphite 760T,didnot deside yet)..
SSD Samsung 840 250 GB..
WD black 4 TB..
Asus combo optical drive..

My questions are these :
1.what is the best cpu liquid cooler(i did reseach but couldnot reach a desicion about what to use which is execllent).

2.I need advice about power supply..i want corsair 850w but they have so many type(CM.RM.AX)what is the best.

3.I want the best and future proofing(at least 2 years)..so i going with GTX980 and Asus swift rog..
but i did reseach and found that there is a problem of display port 1.2 between gtx980 and asus pg278q swift rog monitor(people experiecing boot failur and some beep at startup)some say is manifacuring problem some say drive problem..

I donot want to buy them and end up having blabk screen or these errors.
I donot want 4K..1440 is more than enough for me..i want to play games at ultra setting..so i need advice about the best graphic card and monitor to do that.

Thank you.

 

[Timelord104]

How much are you willing to spend on a monitor?

 

[kolkoll]

Thank for replying..
600 USD..
but that doesnot answer my many question about gtx 980 problem with display port 1.2 and asus pg278q swift rog monitor..
and what about the power supply and cpu cooler?