I should also mention that I have read the other answers and have tried Limewire which has shut down. www.gendou.com and www.findmeatune.com doesn't have them. Does anyone else have any other suggestions? Thank you.
Realplayer lets you download any video of the internet for free and it's 100% legal and anti virus. I use and have never had a problem. It works perfect and when you download the music videos from youtube you can convert it to mp3 and then add it to itunes and then you can add it to your ipod. It saved me a ton of money.