yeah, I write things when super tired and can't sleep, thanks for correcting that ... I have no idea what I was looking at now; but it just makes the point that people buy far too large power supplies even moreso.
Final proof of the point, SLI 1080 being benchmarked, total system draw from the wall = 437 watts, 280 watts with a single card. Video stats at the graph displaying that info.
So, really, a 350-500 watt PSU is plenty enough for pretty much anyone building a new system today with intel and nvidia parts; not the 750 watt suggestion earlier in the thread.
If 250GB is enough for you, that one is fine, the Samsung 850 EVO is a really good one from benchmarks I recall seeing quite some time ago.