Probably the best thing to use, which works on most site, is the addon for firefox. You can right click the program on your address bar, and download all media files on a site, including streaming video like youtube, dailymotion, nudetube, hamster ect ect. You can also add another addon and convert the flv's as your downloading them.
This addon also lets you download all photos on a site, and neatly saves them into a folder on your desktop.
Once you start a download, you also have the option to pauise and then restart.
https://addons.mozilla.org/en-US/firefox/addon/3006
regards
CP.
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