Question on moving files
 

I've seen a couple of videos on YouTube with some songs that I liked. I have an iPod Shuffle (the small 1GB version), so I went on iTunes and tried to find the songs. They weren't there. I'm considering getting Limewire so that I can get the songs, but the question then arises: How would I move the song from my computer drive to my iPod? Does anyone know if there's any way to do this?

I'm sorry if this is in the wrong section; I didn't know where else to post it.