Hello, I have just been on that website.
Does that mean on a 12V rail i will get 38Amps????
That's not exactly how you add up the rails (I forgot the exact calculation), but I do believe it will power your system. For twenty bucks more, though, I'd go with the OCZ unit I posted from ebuyer. Then you wouldn't have to bother with adapters and it's a better manufactured unit.
Also it says this "4 Pin Molex to 8(4+4) pin +12V Powr Adaptor x 1".
Is this the 8pin beast I am looking for?
No, I think that's for the P8 connection to the mobo.