How's your budget, and what GTX760 cards do you plan to use? Your future chassis also?
i did't buy it yet
this is my first build
but i'am planing on geting:
3 cards of gtx 760 ((mostly msi gaming card))
samsung ssd 840 series 250 gb
nzxt 630 full tower case
Seasonic PLATINUM-1000 ATX 1000 Power Supply((i don't know if it's compatible with the haswell cpu))
wd 1t black
Kingston HyperX Beast 16 GB Kit (2x8 GB) 2400MHz
a 2560x1400 monitor
a g9x mouse and a CM Storm Trigger - Mechanical Gaming Keyboard
If gaming is your main purpose, you'd better be settled with an i5 4670k, 2x GTX770 and a 80+ silver/gold with wattage around 700-800w rather that your plan above. RAM also doesn't need to be that expensive unless you do some editing/rendering.
2 770s cost 800$
3 760s cost almost 800$
but the performance between them is not small!
so i think 3 760s is a better deal
1000 watts is bit high for my build
but with some over clocking i think it will help me alot
and it's only 20$-40$ more then a 850watt
so i think i will go with a 1000 watt that will stand with me for the next 5 years
getting an i5 4670k is not a bad idea
also the ram
i think 1600mhz will do just fine
back to the main topic
z87 motherboards that support 3-way sli
Are you doing Nvidia surround. I can only imagine 3 way SLI with 3 GTX760 4GB cards for surround. That you have one card per monitor that could play everything it seem at high settings. it would be $900 instead of $800 for the cards.