Do you actually need that much power? Unless you have dual gpu's a 550/650w psu is more than enough. The pc in my siggy along with 12x 120mm fans, 4x 200mm fans, 2x fan controllers, 2x Temp monitors and a couple of leds for the reservoir only pulls 128-275w at the wall while gaming depending on the game and the very max I have managed to make it pull was 367w at the wall while using OCCT's psu torture test. Idling/ internet browsing is 72w at the wall. I have live power draw displayed in one of my fan controllers which is how I know what is being drawn all of the time.
I would be looking at the Seasonic Focus Plus gold series and the Antec HCG Gold series which are essentially the same psu housed in a different case. Both are rully modular and have 10 year warranties.