Power supply for 3 way GTX 580 sli?

[Bentley1121]

I'm building a new computer and am planning on having 3 liquid cooled GTX 580's but I have no idea what kind of power supply I will need. I'm fairly new to PC building and this is the first time I'm attempting anything above a basic graphics card or processor swap. Also if you have any suggestions on a reasonably priced liquid cooling system it would be much appreciated. The 3 cards already have Koolance waterblocks installed, and I'm looking into getting an i7-3770. Thanks!

 

[Danbuscus25]

http://pcpartpicker.com/part/corsair-power-supply-cp9020057na

 

[IchigoKurosaki]

If I'm not wrong, the max tdp for a single 580 is 250 watt approx, so you'll be looking at 750 watt from from gpus itself, I would suggest you get the newer i7 (4770k or 4790k) if you can afford it, otherwise another 95 watt for your processor.
Overall get a good 1000 - 1200 watt smps and it should work fine.
1200 watt will give you some headroom to work with.