How Many Watts Should My PSU Have?

[Luminor]

Question: I'm building a system with plans to upgrade in the future and I was wondering how large of a PSU should I have for the parts i'm looking at?

Parts:
CPU: i7-5820k
Motherboard: MSI X99A SLI Krait Edition LGA 2011-v3
GPU: Gigabyte G1 Gaming GeForce GTX 980 Ti
RAM: Crucial Ballistix Sport 16GB (4x4GB) DDR4 2400
HD: WD Black Series WD2003FZEX 2TB
SSD: Samsung 850 EVO 250GB
CPU Cooler: Silverstone Heligon HE01
Case: NZXT SWITCH 810
Fans: NZXT FN-140RB 140mm (x5)

Upgrades:
-More RAM, same type
-Another GPU, same type
-Another HD, same type
-Water cooling (more fans, dual radiator [maybe], pump, all the fun stuff)

Note: I would like decent headroom for possible overclocking of the CPU and/or GPU(s) as well.

Thanks for the help

 

[utgotye]

http://pcpartpicker.com/part/antec-power-supply-hcg850m

 

[Math Geek]

right now this is the best price on a solid psu

PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($46.99 @ NCIX US)
Total: $46.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-07-27 19:22 EDT-0400

plenty of power to oc all you can and still have some extra to spare.

 

[Rogue Leader]

right now this is the best price on a solid psu

PCPartPicker part list / Price breakdown by merchant

Power Supply: EVGA 750W 80+ Bronze Certified Semi-Modular ATX Power Supply ($46.99 @ NCIX US)
Total: $46.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2015-07-27 19:22 EDT-0400

plenty of power to oc all you can and still have some extra to spare.

Wow thats a killer deal

 

[Math Geek]

think it is a $25 rebate but still it is a great price. i just bought a few of them to keep on hand for client builds.