I have a Asus P8Z68-V-LX Z68 motherboard which is PCIE 3.0 ready apparently. I am also running an i5 2500 3.3 ghz, which I believe can easily be overclocked. I've got 16gb ram and a stonking new PSU.
So conceivably, I could swap out my Asus ENGTX560 graphics card for a GTX1070, which should fit on the mobo, and add an Oculus-compatble usb 3.0 card like this:
I'm hoping this is the case, because it would save me big bucks.