I use AVAST free edition, it works ok with vista and is free
www.avast.com

 

BitDefender works quite well.

 

Both these work with Vista =D

AVG Free Edition http://free.grisoft.com/doc/5390/lng/us/tpl/v5
NOD32 http://www.nod32.co.nz/index.php

 

AVG seems to work well

 

I am using AVG free Anti-Virus on mine. It installed no problem and runs fast. Time will tell if it protects well.

I have NIS 2007 on my XP desktop and licenses for 2 more computers but I have decided not to put it on my new laptop. It is a royal PITA to install, creates incompatibilites with some of my network devices (the ad-blocker treats some IP camera/webserver interface pages and buttons as ad banners and there is no way to configure around this), and it *really* bogs down computer startups.

 

Yea I have heard that same story multiple times about norton 2007

 

I am using the "Windows Live OneCare"-as the name says, its from windows and when downloaded entitles you to 90 days free protection

http://onecare.live.com/standard/en-gb/default.htm

 

I have 2 pc's running Vista. I have Avast on one and Avg on the other and have not had a problem with either one.

 

NOD32 here, good stuff, not intrusive, and small footprint. In XP I ran AVG free for a couple years, and Avast!, both very good.