I also recall reading about a not-to-glowing review about Zippy, which surprised me. Unfortunately, I don't remember where (yah, that helps, eh? :roll: ).
I think a 750W to 850W PSU would suit you. I'm still not convinced about the need for 1kW PSU's, except maybe for the brag factor. Or if you're going quad-SLI. :Q
PC P&C would be my first choice, but the Silencers are too big to fit into a P180.
Below that, I'd look at price and buy something on sale (Antec, Seasonic, SS, etc.).