I'm embarrased to say I didn't think it would be a problem, all my previous supplies have been single rail, so I've never had the experience so I bought a couple Antec 1300W 4 X 25 AMP PSU's cuz I thought they'd be fine and they were on a massive sale???
I haven't opened them yet, should I try to exchange?
Yes.
point taken, - is
http://www.memoryexpress.com/Products/MX48291 sufficient?
this PSU I think is the same as in the video, but it seems that the included cables might not be up to snuff...
from here ->
http://www.memoryexpress.com/Products/MX48291/ReviewsThe stock cables that come with the power supply seem fairly cheaply braided, however they do sell single braided cable sets for 90 buck that make a huge difference
I guess what I'm asking is what is the most trusted PSU to run this beast?
Those EVGA 1300s work great for my FrankenJup. But others had problems trying to run more than 5 FrankenJup modules. So I would proceed with caution. Check the KNC forum for more discussions about PSUs.