We now have the ability to display YouTube videos and other media in posts. Simply post the URL to the video in question and it will be replaced with the required code.
We support the following sources for now:
YouTube
MySpace TV
Google Video
Bolt
iFilm
Meta Cafe
Yahoo Video
Daily Motion
Amazon items
NOTE: The automatic display will NOT work with the "Quick Reply" box. You need to use the standard Reply form, and make sure that the options for "Automatically embed media" and "Automatically retrieve titles" are enabled (these are located below the form under "Additional options").
If you want to see other formats supported, post a request in this thread and I'll see what I can do.
Also please post any problems you may be having.
Look here for an example:
YouTube test