ok lets try this
http://pcpartpicker.com/p/1F7dvthe i7 will get you very good performance
with the evo 212 you can overclock your i7 to above 4ghz, with barely any sound
the gigabyte z87x-ud4h is a rock solid motherboard. in fact, i have it too!
8gb of ddr3-1886 will handle any games
the caviar black hard drive has 2tb which is enough for anybody, and it is a top-of-the-line hard drive
the 780's performance is godly
if you even ask if it will play blockland i will slap you across the face
yes it will play blockland on max shaders, probably at 500 FPS
lovey-ass case you wanted
the PSU is silent and puts out 850w, which is enough to power 1 more video card in the future, if you want to SLI another 780 for double the video performance
windows 8, self explanatory
some standard asus 1920x1080 monitor, nothing spectacular