I have a web site you might want to try:
http://www.messuge.com/mp3z/. I ran across this web site awhile back.
I myself use Bearshare which doesn't (so far) carry infected or humpbacked songs or what I call "screechers" which after downloaded sound like a screaming-in-agony computer. These files can contain RIAA tags (?) and people with these on their computers can and have been getting sued. Please refer to this post for more information on what happens at kazaa:
post
You asked what else could be downloaded but songs? C'mon, use your imagination PiggySmile...one of the biggest things beside music is the inevitable PORN. Tsk Tsk Tsk.....terrible thing, don't ya think?