well i can distinguish between legit and not legit free softwere. Something that starts like 3drl.exe from limewire is not something that i would download. But OpenOffice.org is a different story. Unless of cousre 3drl.exe is a known softwere that I read about in axim forum

. My point is that if you are really careful and you don't download a lot of files, you don't really need anti virus.