I just followed Lisas instructions, and it is easy as pie, I thought it would be trickier.
you just copy the youtube url you want, no fancy embed video code, just the address from the top of the page as for any link,
then when you want to post it here click the url, then media boxes,
you end up with [url][media]then your videos link is in the middle here, and then it finishes with the same on the other side.
PS Pansi, I changed your post so the video is showing now, it sounds like native music as interpreted by Abie Frinklestein and the Miami Groove Machine.