or if you're willing to shell out £40 for a year, nod32
second to none for me, they have a smart secuirty suite or the standalone antivirus
*virus and trouble-free for 5 years with it*
www.eset.co.uk/
it also uses piffling amounts of resources compared to 'most' other AVs
( The Great Architect is still waiting for his account to be deleted on, Tue 23 Jun 2009, 19:12, archived)