When gaming my modestly configured desktop (i5, GTX650 ti, ssd/hdd combo w/good air cooling and good case cooling) pulls 250-300 "at the wall" according to my k

When gaming my modestly configured desktop (i5, GTX650 ti, ssd/hdd combo w/good air cooling and good case cooling) pulls 250-300 "at the wall" according to my kill-a-watt. I would imagine that as you go up the "gaming" chain (multiple GPUs, water cooling, etc) you could find yourself at the upper bound of that range.