I have recently had to uninstall my copy of Norton Antivirus 2002, therefore leaving me unprotected from the many threats around the web and elsewhere.
From a post I posted a while ago, I remembered a free antivirus program called 'avast!' and I decided to have a look at it. I don't think I have been happier with an antivirus program!
All the features that are provided with the free version are just what every casual user needs to stay protected. The many different skins that you can choose give it a fresh new outlook on virus handling, and the Virus Recovery Database is very helpful!
If you need a free antivirus program, then I suggest you go for 'avast!'