is it legal to.....
 

I am interested in using limewire but only by legal methods. I know it is illegal to download music without paying for it, but is it illegal to download music videos without paying anything? I would like to know because I don't want to do anything illegal....i'd prefer not to get in trouble with the RIAA or whoever else likes to sue 12 year olds for 40 million.

If it is copyrighted then in the US it is illegal. If there is no license with it then it is probably copyrighted.