There is a mod for embeding YouTube video with a cool button.
YouTube Mod (http://custom.simplemachines.org/mods/index.php?mod=390)
Can someone do the same thing for MySpace video?
You could just edit the YouTube mod, and change the "http://www.youtube.." URL list in the mod, then change it to "http://video.myspace....[ID code comes next]".
If you are having trouble, I'll try doing a quick mod for you.
Thanks for the info but I'm not to savvy on changing a mod. ;)