nod32 is pretty good. I was using it for a bit on my windows box at work, but then I just got sick of it, so I removed it, and all other spyware software I had. Yes I am running a windows XP machine with No antivirus or spyware software. Why because if you know what your doing you generally don't need it.
i cannot agree more! seriously, if you're into just browsing and doing "good" stuff on the net. (and not visiting free porn sites, etc) you won't need it. lol.. except when your fun of using flash drives!
if i download something from the net and kinda hesitant with either its legit or not i use "virus total" uploader. It uploads the particular file (accepts zip/rar) on the net and it checks that file online for viruses in real time, using multiple well-known AV client. such as norton, avg, kapersky, etc. try searching for it its very handy..