What is a good and inexpensive computer anti-virus program?

I just bought a new computer, with vista installed and need to get anti-virus software for it, but don't know which one is the best around.

What is a good and inexpensive computer anti-virus program?anti virus

There are free anti-virus scanners availble. They work well. I like AVG the best of all the free anti-virus programs.

If you are not willing to spend money it is good to have some kind of anti-virus software

avg

http://free.grisoft.com/doc/1

avast

http://www.avast.com/eng/avast_4_home.ht...

Avira AntiVir

http://www.free-av.com/

PCTools

http://www.pctools.com/free-antivirus/

For a Cost

This is my recommendation for anti-virus. Free are good, but they are not as accurate as the top paid anti-virus software

Top-Tier

Kaspersky

http://www.kasepersky.com

Nod32

http://www.eset.com/

What is a good and inexpensive computer anti-virus program?auto protect

Three letters for you A-V-G ...it's free and is way better than McAfee or Nortons... Might have to look at the website to make sure it is compatible with Vista but it's worth a look.
I use spysweeper. its reeeeeally good at prtecting you from the bad things. It automatically updates, says which sites are dangerous, prevents viruses and spyware [along with the other lame things like adware, worms, etc], and can detcect hackers [ive gotten rid of 2 of them before]