An interesting little plugin, Daikos Youtube Widget, which allows one to embed Youtube vid’s on the sidebar in one of two ways: either just as a tiny vid (I have mine set to 170 pixels wide), or, by using the Thickbox plugin that comes with, you can have them pop up. I am avoiding using the Thickbox, since it doesn’t work well with WP 2.5 and up in Internet Explorer. Like when trying to upload photos, you end up with an unmovable box half covered at the bottom of the screen. You can try it at my testing site.
The other problem I ran in to is that it will not show more then one video at a time like it is supposed to. Oh, well.