I use AVG Pro and have been using it for quite some time now. I have had great results with it. I also have AVG free on my Daughters' computers and they are on LimeWire like no ones business. So far so good. Sooooo anyway, that be what I use.
The prblem with AVG (pro and fre) ist that while you think no infectiosn have got through (cos it doesnt alert you) it doesn infact let some very nasty ones through if you encounter them, where as the market leaders (Kaspersky, F-Secure and NOD32) dont.
There is a reason why those three are market leaders and AVG isn't.
AVG is popluar because of the free version and people don't like to admit that free software in some sectors is not as good as commercial software.
All you whou run AVG, I recommend you remove it and test nod32 for a month. Make your mind up.