I really appreciate your advice here, thank you. I take your point re: the HDD, and will look into the video card manufactures. How much of an advantage will the CPU you suggested give me vs. the i5-6600K?
I was mainly working from the Enthusiast build from Logical Increments website
http://www.logicalincrements.com
1)My current rig is laughable, a dual core 2.6GHz, 4 GB ram (only 2.25 usable), 1Gb (I think) ATI Radeon HD. I didn't SLI, even if it was possible it didn't seem worth it.
2)I'm not aware of geforce's next card tech, and tbh I feel that if I put this build off until then that it may never happen. I'll look into it. In terms of future proofing I was thinking of having at least one USB 3.1 port, and a minimum of 3 USB 3.0 ports to take both the Oculus display and controller. The motherboard you suggested does not have a 3.1 port, so I think I'll look for another. I'm not looking to SLI.
3)I take from your advice that I'm better off going for a smaller form factor. What advantages does that have for me? I'm not being funny by asking that question, I was just under the assumption that a bigger case would give better airflow vs. a smaller case offering simply better aesthetics? My current PC is a full ATX, and to be fair there is a lot of wasted space in the case. All of these futureproofing features you mention (USB 3.1 etc) can be found on mATX and ITX boards.
4)I know very little about overclocking and so would only look into it when required (if ever). I was going to go for an optical drive to install old pc games that I've collected over the years.
As I said, thank you for your input, I really appreciate it.