Don't know how long this Free Offer is for but spotted this on the same page as another HUKD Freebie.
• Download quickly and easily videos from YouTube, including movies trailers, music videos and more.
• It automatically detects the video on the YouTube open in Safari, and with a single click, you can save your favourite YouTube videos, even HD YouTube videos to your Mac instantly.
• Activate whenever a video is detected on the website you're on.
• You can start downloading when the YouTube video starts to load Built-in video player for the convenient playback of FLV videos on Mac.