Take a look at the Monster here: Tweakers Page - What kind of PC to use? and exchange the E5-2687W (2x) for the newer E5-2697 v2 (2x). Possibly exchange the GTX 770 for the GTX 780 Ti.
It will NOT be the World's Best, that would require 4 x 15-core E7-4890 v2 CPU's, 512 GB memory, 12G SAS etc. but at a different price. Around $ 200 K.