The Oculus Rift will be available in the very near future. You are going to need a decent computer to put your headset to good use though. To get the full Rift experience, you are going to need a machine with:
- NVIDIA GTX 970 / AMD 290 equivalent or greater
- Intel i5-4590 equivalent or greater
- 8GB+ RAM
- Compatible HDMI 1.3 video output
- 2x USB 3.0 ports
- Windows 7 SP1 or newer
There are more powerful machine available on the market. But a system with the above specs should be capable of handling virtual reality games and apps. Of course, if you are planning to buy a new PC, you may want to wait a few months to get a system that is fully compatible with future VR systems.