PC for VR etc.

Hi all. I am going through the initial research stage and was thinking of posting here first. I have had my current build for around three and a half years and it is starting to overheat in its enclosure and freezing every now and again so it is time to have a look.

I currently have my PC connected to the television & a 1080p monitor.

So essentially I want to get into VR eventually so want something that can help me do that & if it can play things at higher resolutions, even if I am not doing so now, would be good to future proof it. Thanks.