This one isn't quite for the faint of heart as you have to install a lot of scripts but here is what I did to get hulu and vimeo working on the Raspberry Pi.
sudo apt-get install libwww-mechanize-perl libxml-simple-perl libcrypt-ssleay-perl libio-all-lwp-perl liblwp-protocol-http-socketunix-perl liblwp-protocol-socks-perl libdigest-hmac-perl libcrypt-blowfish-perl
sudo cpan "Module::Find"
sudo cpan "Crypt::Blowfish_PP"
sudo cpan "Crypt::Rijndael"
git clone https://github.com/monsieurvideo/get-flash-videos.git
sudo make install
get_flash_videos --add-plugin http://gitorious.org/get-flash-videos-plugins/gfv-plugins/blobs/raw/release/Hulu.pm
It doesn't look to bad written out but it will take you a bit to install everything.
Once you do that, you can download any video from hulu (not the members only ones), vimeo, and many other sites without commercials like so:
Now you can get my updated youtube-safe script from here and use it to play videos for you as well.
I'll work on making a browser plugin for this as well. Then you can stream videos from those sites by typing:
Consider donating to further my tinkering