Scott,
I use free avast virus protector, low resource, non-intrusive
http://www.avast.com/eng/download-avast-home.html and free Ad-Aware. Scan once a week
http://www.lavasoft.com/products/ad_aware_free.php?PHPSESSID=c00f9437431c506d28a93f6a620de11a and use the built in Windows XP firewall.
No problems
------------------
Larry
SynthZone Frapper
_________________________
Larry "Hawk"
Hawk Music Sadly No More
♫ 🎹🎹 ♫ SX-900