New to PSUs, whats the difference?

[Jaysap]

Just selecting PSUs for my build, and I was wondering what the difference was between these?

Antec High Current Gamer 750W 24PIN ATX12V V2.3 Active PFC 80 Plus Bronze SLI Power Supply 135mm Fan
http://www.bestdirect.ca/products/231687/HCG-750/ANTEC/

XFX 750W PRO750W Core Edition Single Rail ATX 12V 62A 24PIN ATX Power Supply 80PLUS Bronze
http://www.bestdirect.ca/products/232783/P1750SCAB9/XFX/

OCZ FATAL1TY Series 750W ATX 24PIN SLI Ready Modular Cables 135mm Red Fan 80+ Bronze Power Supply
http://www.bestdirect.ca/products/227714/OCZ750FTY/OCZ%20Technology/

I like the Antec one since it'll compliment the red in my case, but I see the XFX to be recommended. I do know the Antec is not modular, but I really don't know how that affects things.

I'll be using a single Sapphire HD6950 2GB for now. I'm open to the possibility of adding another in the future.

 

[davcon]

XFX 750W PRO750W - $99.99 CAD + $30 mir = $69.99
http://ncix.com/products/index.php?sku=58296&vpn=P1750SCAB9&manufacture=XFX&promoid=1026
You can Pricematch at NCIX.
NCIX,BestDirect,and DirectCanada are all owned by the same parent company.
or
Antec Truepower New 750W Modular - $111.97
http://www.directcanada.com/products/?sku=10370AC6497&vpn=TP-750&manufacture=ANTEC
Both these units are Seasonic oem.
If you don't mind fixed cables the XFX is a great deal with Mir.
Otherwise the TPN is reasonably priced for less cables to deal with.
The High Current is a Delta and the OZC a Sirtec.
Seasonic builds are better imo.

 

[abc def]

Both Antec and XFX are great choices, they provide near 750W on the 12v rail while ocz only give you 650W.