Compatibilty with all my parts

DemTittehs

Honorable
Aug 15, 2013
6
0
10,510
Hi there,

I am curently buying/building my Custom PC worth around 1600USD, I WAS following the technical team of my main supplier with compatibility but they sorta screwed me when the PSU i ordered doesnt work with my current and to-be motherboard, as I list these items could someone please confirm whether these would be compatbile with each other, also, whats the take on AMD vs Nvidia, what to get?

Case:
CM Haf 912 Combat
http://www.newegg.com/Product/Product.aspx?Item=N82E16811119233

PSU:
CM Silent Pro Gold 550W
http://www.newegg.com/Product/Product.aspx?Item=N82E16817171057
NOTE: I am from New Zealand and my supplier DOES have the 550W but newegg doesn't.

Motherboard:
Gigabyte GA-Z77X-D3H Intel Z77 ATX Ivy Bridge
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128546&Tpk=Gigabyte%20GA-Z77X-D3H%20Intel%20Z77%20ATX%20Ivy%20Bridge

RAM:
Kingston 8GB Module DDR3 (two of them obviously)
http://www.newegg.com/Product/Product.aspx?Item=N82E16820104301

CPU:
Intel Core i5-3570 Ivy Bridge 3.4GHz (3.8GHz Turbo Boost) LGA 1155
http://www.newegg.com/Product/Product.aspx?Item=N82E16819115233

Now on the note of Video Cards, i really wasnt sure what's good in the market at the moment, as my PC is over 5 years old :/
If i was to go with Nvidia i was looking at getting two GTX670s
I stream actively so i definitely want two cards, just not sure what AMD has to throw on the table. Any ideas?
 

DemTittehs

Honorable
Aug 15, 2013
6
0
10,510
Going to have to go premium and buy at retail price not cost through my supplier, that however opens up alot, I'm presuming about 130-200NZD for a decent 750w psu? However reading around people have been saying that going Asus 7870 isn't bad. Is this a better option? Ignoring price for a moment with GFX cards anway. Would two 7870s require same power as two GTX670s?

What about this?
CORSAIR 860W AX-860i ATX12V
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139041&Tpk=CORSAIR%20860W%20AX-860i%20ATX12V
This is available in NZ