[The Geek]

@Kurt: Nope. There isn't the ability to override vB4's way of displaying the output. You could technically add container code around the output of the bbcode_video template, but it will get overwritten when vB or AME rebuilds the template. Furthermore vB only puls 1 parameter from offsite so you wouldn't be able to pull the title in like AME2.x
Sizes are also limited as vB hard codes these into the embed code, but gets around some of these limitations via CSS. So technically you can override the size via teh CSS technique (this is how AME'fy does it).

@Chicken: This is why I avoid getting into custom definitions. It over takes your life and these aren't always quick and easy to do. Saying that I did one for you but noticed an AME bug in the process that I will need to fix before I release it.