Figured I should post this here as well...
1.) This is the ultimate youtube video downloader. You just pop the username into this free program and it gives you the ability to download all or handpicked videos that the user has in one simple step. Now here's the beautiful part...i automatically names your videos with the username__title__videoid.flv in tact so you can be totally organized without even thinking about it. It's called Tubemall and is available at
http://tubemall.net
2.) This is a must download... It's called ytbuddy and is also completely free...it checks your subscriptions every few minutes (or however often you tell it to) and downloads everything you are subscribed to with a preview picture. It also, names everything with the username__title__videoid.flv format so you don't have to worry about it...Now you don't have to worry about missing that golden video while you were sleeping. It is also from this website
http://tubemall.net
3.) And the last great tool here is called "undeletube". If you want to view a video on youtube that was removed you can plug the video id into this "undeletube" viewer here: hxxp://tubemall.net/undeletube.php ...it works most of the time if the video was just removed recently. They also have a dail vids page that has what other people have been popping into undeletube.
http://tubemall.net/daily.php
Cheers