I really like your setup!

I see you got EVGA 1200 G2 PSU. Is it enough for 6 x Sapphire RX480? I'm planning to build a very similar setup using Rosewill RSV-L4500 server case but with 6 x XFX RX480 GTR 8GB and Asrock BTC v2 motherboard. GPU cards will be bios moded (undervolt and overclock memory). I was a bit worried 1200W might be not enough. I was thinking to go with EVGA 1600 P2. Is really worth spending extra money on 1600W Platinium class PSU? I don't think I will ever run more than 6 GPUs.

Thanks

Dom