Powerwise, that will work fine with the cards at stock (not alot of overhead with the rest of your config) 
 
But in a 922 case the non-modular cables are going to be a nitemare to deal with..
 
Here is the best review on that PSU
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=157
 
I would think carefully about your case layout, airflow and the negitive listings in the review.

The Silencer is a great PSU. I think you are set. I'm only seeing around a 550W draw from the wall with my two 580s which are also set at 850 MHz and loaded between 85-94%. The power draw can peak at 650w if I fully load the GPUs.

thatKingKong

maniacvvv

Powerwise, that will work fine with the cards at stock (not alot of overhead with the rest of your config) 

But in a 922 case the non-modular cables are going to be a nitemare to deal with..

Here is the best review on that PSU
http://www.jonnyguru.com/modules.php?name=NDReviews&op=Story&reid=157

I would think carefully about your case layout, airflow and the negitive listings in the review.

That reviewer said "IT'S LOUD!" not sure if I want LOUD lol. 

Maybe this one will be better: http://www.newegg.com/Pro...=N82E16817139013  ?

 
The Silencer 910 is only loud past 700W of load, which you will not be drawing from the PSU with your setup.  You should only hear a very slight "whirr" with the kit you have in your sig plus a second GTX580.
 
The TX950 runs too hot for me to recommend it.  It's a decent platform for 850W, but it's stretched out to much and at the limit at 950W as is shown by the exhaust temps under load.
 

thatKingKong
Edited: people from newegg said it's not loud....  http://www.newegg.com/Pro...plies-_-17703022-L023D

 
It is my firm belief that many of the people who post reviews on New Egg are mentally retarded......so their "reviews" should not hold that much weight in your buying decision....good or bad.

You think 850W with 70A is good enough for my setups with 2x 580?
 
I was thinking about the Antec 900W too.  It has 3 or 4 rails, 40A each, I think.

A quality 850W will be enough. 
 
What is your budget? 
 
If you want a very good PSU that is modular you might want to look at this:http://www.newegg.com/Pro...x?Item=N82E16817194081
 
I still say if you can deal with the hardwired cables, which in all honesty isn't all that hard if you are patient, then the Silencer 910 can't be beat for the price. 
 
Also a +1 for the AX850 and the Seasonic X-850 mentioned by linuxrouter.