Although I have tried many products I can't recommend any. You need to decide if a product is easy for you to understand and use (what good is a virus protector if you don't know how to use it?) Here are some site I hope will help you in keeping safe, I have tried to list as many as I can. The best thing is to try them out see if you like it then buy! By the way I'm not trying to sell you anything nor do I make a profit in anyway from these site's.

Nuke-protectors (also know as watchdogs)

NukeShield  http://www.geocities.com/SunsetStrip/3705/

SessionWall-3  http://www.abirnet.com/aboutsessionwall.html   Evaluation (very technical I would recommend for Nerd's only)

Anti-virus Program's

Anyware AntiVirus http://www.helpvirus.com/   FREE TRIALWARE VERSIONS

AVAST32 http://www.securenet.org/avast.html   Evaluation

F-PROT Professional http://www.europe.datafellows.com/f-prot/   limited free versions

Norton Anti-Virus http://www.symantec.com/nav/index_downloads.html   Trial Version and free dos version

ThunderBYTE Anti-Virus http://www.thunderbyte.com/  demo software

TuneUp   http://www.tuneup.com/ Free Version

ViruSafe http://www.eliashim.com/   FREE ViruSafe software

Sophos Anti-Virus  http://www.sophos.com/downloads/eval/  Evaluation

Firewalls

http://www.ncsa.com   download evaluation or get free evaluationCD

http://www.signal9.com/   30 Day free version

http://www.gnatbox.com/   GNAT Box time limited fully functional

http://www.wingate.net/download.htm  30-day unlimited-user trial

http://www.iss.net/prod/products.html   download evaluation

Helpful and Informative Site's:

AVP Virus Encyclopedia http://www.avp.ch/avpve

Cheyenne Security Center http://www.cheyenne.com/security/avirus.html

DataFellows Virus Information Center http://www.datafellows.com/vir-info/

Dr. Solomon's Virus Central http://www.drsolomon.com/vircen/

McAfee Virus Pages http://www.mcafee.com

NIST Virus Information Page http://csrc.nist.gov/virus/

Seven Locks Software http://www.sevenlocks.com

Symantec Antivirus Research Center http://www.symantec.com/avcenter/

Trend Micro Virus Encyclopedia http://www.antivirus.com/vinfo/vinfo.html

http://www.portnet.co.jp/JIS/techical/WS/sun-faq/security-faq.html

http://www.winplanet.com/features/reports/netexploits/index2.html

http://www.academic.marist.edu/papers/vogt/compsoc.htm#BattlingTheHackers