Whats the minumum wattage of this?

Gh0st_3y3

Reputable
Aug 31, 2014
3
0
4,510
My ideal build has:
Motherboard: ASRock X99 Extreme6 Motherboard
CPU: Intel Core i7 5820K
Hard Drive:Corsair Force Series LS 60GB SSD
RAM:G.Skill Ripjaws 4 F4-3000C15Q-16GRR 16GB (4x4GB) DDR4 Red
CPU cooling:Noctua NH-U9B SE2
BitFenix Ghost Silent Tower Case Black

This is what i'm planning to get for now.
P.S.
I'm planning to add in 2 two TB hard drives at a later stage and probably one Nvidia GTX 780 or the 880 that's rumored to come out??
This is my first time attempting a build so all suggestions are welcome
P.S.S.
I'm living in Australia where summers can be up to 40 C, is the cooling enough?