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I'm suprised that no one has suggested System Suite 6 from Vcom.
I've been using it for the last 3 years, and it does everything I need:
Spyware removal
Anti-Virus with Cleaner
Personal Firewall
Anti-Spam protection
And More... Maint etc.
Cost is about $35.00 but well worth it.
check-em -out at Vcom.com