Why not go with 3 PSUs? For $60 you can get something like
Corsair CX500, which will easily power a single ant, even an overclocked one.
Cables, and How would i go about setting each one up? Im running these in my garage which only has two outlets (2 plugs, not two sets of two) but that's it, so I have the whole circuit to myself xD. I don't really want 1500w running through a power strip..... I also need the other plug for ethernet over power bridges. SO yeah, how should I go about doing this?
A power strip rated at 15A+ will run 1500W no problem, and it costs less than $10. Besides, you will only need 3x400W=1200W to power the miners.
You can go for a gold rated PSU to save 5-10% of power consumption, say
Rosewill CAPSTONE-450 450W Continuous @ 50°C for $60.
If you are set on using a single PSU, go for this one
Rosewill LIGHTNING-1300 1300W Continuous @ 50°C for $240, it's also modular, so even less cables.
cx 750m (two of them) seems to be the most cost effective option. Also thanks for calming me about the power strip, time to find a decent power strip. Do you think a UPS is needed?