While no price has been announced yet, pre-orders will open for the Oculus Rift on January 6th at 8AM PT. The delivery date is also ambiguous, but still on track for Q1 of 2016. You can go to http://www.oculus.com to do so when it becomes live.
It's going to be a hectic day with that and the start of CES. I'm still disappointed we haven't heard how much it's going to cost, but we'll know all in two days. At least you'll be getting two games (Lucky's Tale, EVE: Valkyrie) with it and an Xbox One controller.
You can be sure I'll be picking one up when I wake up Wednesday morning. I can't wait and I do have an appointment with Oculus so I'll be interested to see what, if any improvements were made since I last saw them at E3.