That is a lot of money for that unless the PSU is worth it. Why 1000watt most modern dual GPU systems run on 750-850watt PSU's? http://www.realhardtechx.com/index_archivos/Page362.htm
it shall be used with a i7 6 core, with dual 7970, quadro 4000, 1x ssd, 3xHD 7200 rpm, dvd drive, bd writer, 64 g ram, a sound card, bluetooth, wifi, mild OC..., and 4 USB device... all sum up to be around 800 watt..
3 case fans..and water coolers
i shall use that system for the next 3 yrs...may add one or 2 more HD..., and shall expect those PS shall have some erosion down the road...., and i think..1000W may be sensible ...
beside that..the case loook so nice..