Great Downloader easy to use can convert into multiple file formats. Fast and impressive
Video DownloadHelper - Browser extension to download videos from the Web
PTE AV Studio - Create photo and video slideshows with effects and styles.
youtube-dl-gui - A cross platform front-end GUI of the popular youtube-dl written in wxPython.
Photostage - Quickly and easily combine photos and videos with a narration or soundtrack using PhotoStage slideshow software. Free slideshow maker download for Mac & PC.
Youtube Video and Audio Downloader - Download YouTube videos in all available formats and extract the original audio files.
iMovie - Turn your videos into movie magic.