No offense, but how is a Russion Chess player going to help me with virus. spam, and firewall protection. Seriously, though... what's so good about this product?
I know Microsoft is the devil but the Windows OneCare product is pretty good and getting better. You can't beat the price either. I think it is $50 (I think) and you can install that on 3 PC's. I've been on it since it was in Beta and it isn't even remotely as intrusive or a resource hog like Norton.
It usually ranks at the VERY TOP of virus detection rates, and speed of updates. It's sometimes a bit of a resource hog, and maybe more complicated than most folks need, but I think it does a great job.
If this is for homeuse, AVG free or Avast! free are good scanners. For net security, try Neoava guard beta. It's powerful stuff. I'm pretty cautious with what I put on my computer so I can't say that I've fully tested these programs.