I came across this video and thought it worth posting, have a look at the dual PCIe expansion card, I believe it is running two SSD's in RAID.

The video is almost a year old already but is using the X99 chipset with an 8 core i7 E. 

! No longer available

  Sounds great, oh I can't hear it.  Last I knew the raid wasn't fast enough to handle the output so I guess they are still improving things.  I liked everything he used in the build.  A screen for the input fan, good idea.  Nice when price is no object.
Carl2