From Nuclear Coffee:
VideoGet for Mac is a tool for Mac OS for downloading your favorite video clips from more than 900+ video (YouTube-alike) websites. It supports such websites like YouTube, Vimeo, Google Video, Yahoo Video, VSocial and a lot more.
Most of these video websites are keeping video in FLV format, and a lot of people don't know how to playback these files. VideoGet also providing you with ability to convert each video in most popular formats for more comfortable video playback. VideoGet supports MOV (QuickTime), AVI, MPEG1, MPEG2, WMV, FLV, MP4, 3GP, MP3 file formats, so you will be able not only to view it, but also put it into your iPhone, iPod, iPad, mobile phone or any other portable device. Furthermore you can set up video/audio quality, set up video frame rate, width / height and audio sampling rate.
With VideoGet you can create a list with videos you want to download and download them later. These lists you can save and load later.
If you're downloading large video file and your internet connection was lost or something went wrong with your internet - don't worry, VideoGet will not download this video from the beginning but resume downloading from the place it was downloaded.
In VideoGet you can pause download process, move files up or down in queue as a standard download manager does.