GrabTube is a video downloading and conversion tool. It allows you to download multiple videos from the following video sites simultaneously. It also has a built-in video converter that can convert a batch of videos all at once. Input to it a video folder or a set of video files and select a desired output format, it will convert them all with a single click. It's ability to copy downloaded videos to iTunes library with a single drop makes it stand out from the rest. Currently supported video sites: youtube dailymotion, break, metacafe, myspace, CNN, blip.tv, veoh, liveleak, lulu.
Version 2.0 adds support for additional 6 video sites, improves video converter, and now allows to copy video URLs from clipboard besides drag and drop.