Kaspersky, ESET NOD32, and Sunbelt Vipre. not all at the same time of course, but i switch between these 3 maybe once a month. if an infection is found, i'll scan with all 3 separately.
Now where getting somewhere. I have noticed if I lower the protection to medium shit gets through. Now I have it on max protection nothing has got through. I DL allot of movies(just watched Law Abiding citizen Great movie!!) The one I use has script protection when you load a web page it will scan it before loading. Not a bad program for 20$
AVG and spybot s&d...done good work by me so far...and free!
I also usually run a browser [opera or firefox] FROM a zip drive via proxy if possible
to lower my computer footprint...