Here's now you can do a direct insert of
youtube videos.
Grab the info that
youtube gives you for "inserting" videos, you need the video code or name, and the width and height attributes. So there are 3 key things needed, the rest will be the same regardless of the video you want to post in this forum.
Here's an example with explanation below:

Most will use the same width and height, but just in case, use what they furnish. The blue is the most critical part - in this case, it's a2i6iyjor6o
Note that the path has been modified a bit - we're using the /v/ instead of the v= like they furnish.
Basically, take the path as shown in black above exactly as it's shown, put it between the flash codes with the width and height, and change the blue to whatever video you are posting.
I open notepad or similar, paste everything into notepad, get it looking right, then do a copy from that and paste right into the message.
I enabled the forums flash abilities because I/we trust forum members to not post nasties and spam and rogue code. (Flash can be a security issue with Windows computers.)
Enjoy!