Haven't used any of them since I was badly burned by a virus while using Limewire - the virus slipped thru Norton 360 and destroyed my laptop. Luckily most of my business-critical files were off-line at the time but it still cost me untold agony recovering my personal stuff like irreplaceable photos of parents and grandparents. Are there any peer-to-peer programs that are actually safe? I now use ZoneAlarm Firewall as well as Avast, AVG and Threatfire anti-virus programs, so I think I'm fairly safe - but it would still be nice to have peer-to-peer software I could trust!