Well, it's been an idea of ours for a while, but we've been holding it back for a while due to ideas of how it should work and we've finally made some solid ideas...
A quick "how to" on embedding videos into your post:
You don't need to embed the full URL to the post; in fact, if you do, your video won't load; instead, just enter the video id of the video you wish to embed; it should be listed in the URL of the video while you watch it.
We've not yet decided what we're going to do with video posting; so feel free to give us some ideas!
Also, if you've stumbled across a video hosting site that's at least somewhat popular, let me know about it and I'll add a tag for their service.
All that I ask is that you prefix your subject with "Video - ", and keep the videos "Safe for Work" (unless posted in the VIP/Staff forums anyway).