You can always preview what you're downloading. Highlight the song that's downloading & click 'preview'.
Also, there's Bitzi. Info here:
http://www.gnutellaforums.com/showth...threadid=37676

The threads I gave you earlier have some info about what sort of files to avoid. You'll soon get to know what looks suspicious

**Please don't post email addresses, you could end up with a ton of spam! Could you edit out your email details? Thanks! Also, next time just reply to your original thread rather than starting a new one...just saves confusion