... (OMG 44 Amps on the 12V Rails, 22 Amps each)
That's the maximum per rail. Total is 34 amps. Go to nreegg where they show a picture of the label on the side of the PSU. Look at the second line where they show the maximum power - 408 watts (34 amps).
Obviously cannot be a total of 44 amps. 44 amp X 12 volts = 528 watts.
Of the PSU's listed, my first choice would be the 450 watt Corsair. second choice would be the Antec Earthwatts. I like most Antecs. I donot, however, like the Antec Basiqs. I think Antec cuts too many corners to hit their price points.