绿软家园 - downg.com

downutube这个工具可以帮助你把喜欢看的youtube,google video, apple trailers和imdb视频内容轻松地下载到硬盘上保存和共享。

features include:
searching the web sites (searcing is done within the program, not openin a browser to do the search),
downloading the clips (including mms streams),
keeping looked clips in cache,
showing clips' pictures,
getting all available rss feeds,
looking the pages that contains clip information,
keeping track of downloaded and deleted clips,
downloading more than one clip at the same time
sending your clips and their links to a friend (with system's default mail manager or without).
...
and, it is free