Download online videos you aren't supposed to be able to download...

Ever watch a video clip on YouTube (or other sites) and wish you could download it instead of simply hoping that the URL will still be good next time you want to watch it?Well - here's the solution.If you use Firefox, you can download and install the "*DownloadHelper plug-in*":https://addons.mozilla.org/en-US/firefox/addon/3006, which automatically checks any site you go to with Firefox for video clips, lets you know about them, and downloads the ones you want.Some screenshots:What it looks like if there's something you can download:"":http://electronictiger.com/avail/helper1.png"(Click for a larger view)":http://electronictiger.com/avail/helper1.png
What it looks like on pages where there *isn't* any downloadable video: