It indeed looks like you have done some research. Relatively balanced build, but I think you can do better for $2k.
So according to your build, it looks like you plan to:
Overclock
Upgrade to SLI
game, render, stream(according to original post)
http://pcpartpicker.com/p/qtC8xr <- turns out a lot cheaper.
You can also consider two GTX 970s right off the bat if you want. That would give you pretty killer performance.
http://pcpartpicker.com/p/8TrMyc <-still cheaper than $2k.
Things I changed:
CPU cooler: Beefier cooler for $5 more.
Motherboard: Two-way SLI is the max I'd go. This board has a nice 8 phase power delivery for overclocking, and can handle two cards in SLI. Also, it's cheaper w/ a combo deal from newegg.
RAM: 2x8GB because Intel's LGA1150 can't take advantage of quad-channel. No real need for 4x4GB, although you may have some trouble if you want to upgrade in the future due to possible incompatibilities with mixing and matching kits of such high frequency.
HDD: You can go with a WD Black, but Hitachi Deskstars are pretty high quality.
GPU: Didn't edit your build - just chucked in any GTX 980 for pricing. Choose whatever variant you'd like.
Case: H440. A full tower is not needed for a computer like this. Also, it matches the red+black scheme pretty well.
PSU: 850w is overkill. You can probably even get by with 650w with two GTX 980s, but I wanted some overclocking headroom so 750w it is. Cooler Master's VSM is high quality and great performing stuff - even higher quality than Corsair's RM line.
OS: No need for win8 pro. Regular windows 8 can handle 128GB of RAM.