What is the best adware / antivirus software that doesn't cost a fortune?

My computer is seriously chugging lately, and all I have is an outdated version of Norton, so I'm sure I'm due for some better A/V software with ad/spyware busting abilities. But I'm not into paying 70$ just to RENEW Norton, when I'm sure there are better, less expensive (or free???) programs out there.

What is the best adware / antivirus software that doesn't cost a fortune?computer

I use

AVG

Spybot S%26D

SpywareBlaster

SpywareGuard

MS Defender

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http://www.bleepingcomputer.com/forums/t...

What is the best adware / antivirus software that doesn't cost a fortune?free spyware

I use Avast. Totally free. avast.com
avg free has both but you can find more at

http://www. pcworld.com
For anti-virus software AVG works very well and it is free.

For spyware removal I like both Spybot and Adaware. Both of these are free and work very well. Be sure to download Adaware from Grisoft.

Adaware http://www.download.com/Ad-Aware-SE-Pers...

AVG http://free.grisoft.com/freeweb.php/doc/...

Spybot http://www.download.com/Spybot-Search-De...
AVG - there is a free version available and its quite good.
ad-aware is great for adware, you can get it at download.com (cnet.com)
avg antispy, avgfree, clamwin, bitdefender free, win patrol