Cocoamug Software, developers and publishers of great Mac software, has released CosmoPod 4.2.1 (http://www.cocoamug.com/cosmopod/index.html), an update of the Safari extension that lets you download Flash videos from web sites such as YouTube, Vimeo, DailyMotion, etc.
CosmoPod can automatically convert downloaded files to an Apple device friendly format, tag them and add them to iTunes. Additionally, you can convert most video already on your hard drive via drag and drop so can be used as a tool to import your DVD collection to your Mac, iTunes, AppleTV, and iPhone.
CosmoPod costs US$12. Version 4.2.1 is a free update for registered users of version 4.x. CosmoPod 3 and earlier users can upgrade for $5.