IMHO, I'd go for NOD32 or Avast.. NOD32 is consuming much less resources than Norton and I would definitely go with NOD32. Since I've recently reinstalled my system and I decided to give a shot to Microsoft Live One Care free trial. So far I can say this: -It doesn't use much system resources -It has Antivirus, Antispyware, Performance Tune Up Tool, Backup and Restore Tool and Firewall.. -It has 90 day free trial -It's from Microsoft, so you're sure that it'll work as it should So ST33L, try One Care if you like and tell me what do you think..