although I used avg before, i find it very annoying that it has to pop up everytime its downloads an update.
Kapersky works great on my pc, I've ran nod, avg, avast, norton, mcafee and I like Kapersky They'll all work about the same, you get what you pay for. disable the win update from being alerted by avg, takes all of 2 secs I run avg with kapersky and nothing pops up
You don't need to av programs, use NOD or AVG, not both at the same time... If you want a standalone firewall just download a free one... Comodo is what I use, but there are a few, Zone Alarm etc (not my cup of tea though) Another thing you might want to get is some kind of spyware scanner like spybot s&d
NOD 32 is a good antivirus but not the best, its cheap and reliable that's why if your on a tight budget, choose it.