VR recommendation

I am looking to start developing for VR and had always planned on developing for the Rift. But, with the disappointing lack of support for Mac I am trying to decide if there is another platform that will work well with Unity. I am experienced in Unity and C#, and I loathe working on PC's but would if I absolutely have to for VR.

Any other VR platforms I should look at? If it must be the Rift, what is the recommended PC for the best experience? I like Macs, so small, quiet and 'just works'...

VR recommendation