Hey phyrne, nice share brah.
Have you tried /usr/ports/www/get_flash_videos yet?
I just did a fresh install of FreeBSD and as I was surfing through the ports tree I noticed something named get_flash_videos but I have not yet tried it.

Quote:user@zygotb:/usr/ports/www/get_flash_videos $ cat pkg-descr
[ excerpt from developer's web site ]

Download videos from various Flash-based video hosting sites, without
having to use the Flash player. Handy for saving videos for watching
offline, and means you don't have to keep upgrading Flash for sites
that insist on a newer version of the player.

YouTube, eHow, Brightcove (used by many sites like Channel 4, Daily
Telegraph ...), BBC (news, etc), Metacafe, 5min, Google, fliqz,
nicovideo, vimeo, Blip, Break, Collegehumor, Muzu, Sevenload,
Megavideo, Wat.tv. Also includes a 'generic' method which works on
many other sites.

WWW: http://code.google.com/p/get-flash-videos/

I guess I ought to give it a try before I mention it... But I haven't slept in 28 hours... My thought processes aren't quite up to my standard idiot level yet. :D

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edit:

Meh... I just tried "get_flash_videos" and it didn't work... Disregard my entire post.
I'm installing youtube_dl.