So one POS says another POS is dodgy?
AVG is a naggy, bloated POS anyway. For that reason, like someone else here has mentioned, I now recommend Avira for home Windows users (despite that annoying 'virus database has been updated' voiceover (you can switch that off though))
iTunes is a resource-hogging POS too. It's annoyingness, as far as I am concerned, stems from the fact you *need* it to transfer to iPods (which aren't IIRC recognised as mass storage devices) ; the nokia/SE PC Suite software are a resource hog too, but at least you can use those devices as MSDs.
I don't think it's as bad as AVG though. I still haven't forgiven AVG for the time when I happened to install it on a machine someone brought in from home to work (so it was connected to the work network so I could access the net) and it insisted I pay £££ because I was installing to a 'workstation'; and it wouldn't let me deinstall to try again without some registry hacking(in all fairness it doesn't do this any more though). And AVG 8 is such a resource hog/nagging POS it's disgraceful.