I haven't even seen this mentioned yet by searching.
BBC tags that allow the embedding of break.com videos would be fantastic.
hmm.
I think the difficultly here is that break.com doesnt use the same video id as in the url
eg url = http://break.com/index/biker-in-taiwan-owned-by-street-sign2.html
but the video is different.
Do if the user did
[break]http://break.com/index/biker-in-taiwan-owned-by-street-sign2.html[/break]
it wouldn't play because smf wouldn't normally know the video id.
AFAIK the only way I think you could do this is customise my mp3tube or ebaumsworld mods
Basically when a user posts a [break]URL[/break] have smf grab the actual video link from break.com and store it in the post (like my mp3tube mod does) or in a lookup table (like my ebaums world mod does).
Unfortunately I'll too busy with my other mods at the moment to do custom work.