I know a couple of sites where I download the latest MTV hits (Mp3 and Videos), but they are probably not legal so it would not be quite nice if I mention them here, right?
I like downloading legal music from music.download.com
. The 99% of the bands listed there are unknown to the most of us but that don't really mean they are bad, it's quite opposit. I've downloaded a tons of Trash, Black, Goth, Heavy and other kinds of Metal.
That is my choice, but there are like 50 kinds of music listed on that site, so I guess there's something for each and every one of us. Try it!
P.S. Not all of the bands are great but search for the ones with most downloads.