[backhoe]

Well, you might consider trying these freebies:

Free avast! 4 Home Edition
http://www.avast.com/eng/avast_4_home.html

Get free anti-virus and anti-spyware
http://free.grisoft.com/freeweb.php

I've used both at different times on the home machines, and they are darn good.

[proudofthesouth]

I love and use Avast. The first time the virus alert went off I just about went into cardiac arrest. LOL

I would also recommend Web root Spy Sweeper.

[upchuck]

Standard Security Regimen

1. Firewall: Kerio
2. Antivirus: AVG
3. Malware/trojans/etc:
a. Adaware (NOT Adware)
b. Spybot

Weekly Protocol

For AVG, update the virus definitions once a week. Do a virus scan at least every two days. (Mine does a scan automatically every morning at 3am.)

For Adaware, update the definitions and do a scan once a week.

For Spybot, update the definitions and do a scan once a week. Always immunize after updating. Running the Tea Timer utility is a great idea.

Saved the best for last, ALL of this is free.