JakeAlmighty :
The RAM is going to default to that 2133 speed when you first install it - all you will need to do is enable the XMP profile for the ram in your BIOS and it will clock up to whatever speed it has been rated for.
What speed you actually want to buy is up to you - personally I say that if you're going to build an X99 system with ddr4, then you may as well use the darn stuff and get some fairly fast ram.
That said, you will see very little actual benefit from getting faster RAM in most applications. I usually go middle of the range - paying extra for the fancy 3300Mhz ddr4 is fairly pointless in the grand scheme of things unless you happen to be a memory overclocker enthusiast.
Also agree with the 5930k as recommended above - I'm not sure why people just automatically assume the biggest price cpu is the strongest for stuff but you'll get more performance in gaming from the 5930k for sure. Only having 6 cores means it runs cooler at any given point than the 8 core variant, meaning you have more thermal headroom to get a bigger overclock. (ie. good samples of the 5960x tend to easily reach 4.6Ghz on air/water, the 5930k would reach around 4.8Ghz at the same temperature.) (see link below)
http://s10.postimg.org/9hoxddwdl/screenshot_270.png
Thanks for that info JakeAlmighty. Seems like I'm looking at around the 2400 to 3000 speeds. I guess latency around 14-16 should be OK?
And as for the reasoning for the 5930k, that would certainly work well for gaming but what about a work station. My usual open programs would be Photoshop (texturing and painting backgrounds), Maya (for exporting geometry or creating renders), Nuke (compositing the renders together or importing geometry for camera projections and then rendering) and then finally After Effects or Premiere for final effects and editing.
That's my usual work programs all running at the same time. Also might have Mari open to push the camera projection or make quick edits from exiting projects and/or Vue Xstream for element renders for painting in Photoshop. So just based on this, I'm leaning towards the 5960x simply for those added threads to multi-task.
Do you think the 5930k would be able to handle that sort of work load?