Best antivirus/spware programs that use least amount of system resources?

I'm running a Intel Celeron Pentium 3 1.4Ghz processor with 512MB sdram. I am wondering what are the best virus and spyware protection that uses least amount of system resources, so it doesn't affect the speed of my computer. I already tried Norton and NOD32

Best antivirus/spware programs that use least amount of system resources?

Norton will slow your system to a crawl. one thing viruses do is slow down your computer with nortons you don't need viruses Nortons will slow it down for you.

Nod32 is the top rated Antivirus program that uses the least amount of system resources.

For Free protection

These 3 free tools will help you keep your computer clean ~ Patrick

Check out the video review below for the best free Antivirus program

I recommend these 3 FREE top rated Programs to clean up and protect your system

~ Pat

The Top Rated Free Antivirus Program researched from those who test Antivirus programs (av comparatives, virus.gr, and other reviews including this video review) http://www.youtube.com/watch?v=KhXZo3dHu... is

Avira Antivir http://www.download.com/Avira-AntiVir-Pe...

Today you are in more danger from Spyware I Download, Install, Update and Run SuperAntiSpyware

http://www.download.com/SUPERAntiSpyware...

( I used this to remove spyware and Trojans from a laptop that adaware would only detect but not get rid of ) It detected and removed everything