Will Corsair 860i handle....

[Voltage]

2 x 980 in SLI
2 x SSD in raid
1 x 6 tb WD Black
1 x Hydro H100i
Overclocked 5930k
32gb ram

 

[pastymuncher]

Easily. You will be looking at around 500-550w total system load.

 

[ghost.florian]

Save yourself some money, and get the 760i. A 2x980 SLI setup with a 3960x (less efficient) will consume around 450W.

http://www.guru3d.com/articles_pages/geforce_gtx_980_sli_review,4.html