Do you download a lot?  Does your Internet connection randomly disconnect when you are downloading, making you start all over?  You need jDownloader. It is a simple Java-based app that works with Windows, Mac and even Linux.  It can be used in the same variety of ways as any other general-purpose download manager, and it supports dozens of file hosts such as RapidShare. It can monitor the clipboard and parse any URL that you copy into it to see whether it contains files that could be downloaded. Feed it a YouTube link, and you can download the video.  It is one of the best download managers around today, ant a price that cannot be beat… FREE!