Not only that u need like 24A on teh 12v rail in order to run that thing.
Mines only got 22A and I'm pretty sure I run more than him, plus RAM, CPU, and GPU is overclocked for me
That PSU you're looking at isn't bad, I'm just not a fan of the dual rails myself. Basically you have your main 20/24pin plug and that little 4 pin plug and that's all +12v power directed for the motherboard and CPU.
Then through all the little molex connectors is your second rail. Personally I'd rather just have 38A across one rail since the chances of you using up 19A just for the motherboard and CPU alone are pretty slim, but using up 19A across molex connectors through graphics cards, hard drives, fans, etc... is pretty easy to do IMO.
Considering the system you have, that PSU will be fine except for the fact it's out of stock right now