That is the point. There is no one stop shopping in computer security. It is a complex business. If you run a server on the net, I would advise a multi machine, distributed task beat-up box approach with a non-connected back up machine. If you are intermittently connected by dial up, two machines, a virus scanner and daily/weekly CD and/or two (HD) drive(s) back up is probably all you need. If you have DSL connection and a dot-com but you are not that heavy duty, probably a two machine system with one being a Linux firewall, or cheapo ($250) (no doubt linux) dedicated firewall-switch thing is the cheapest way to go.
It's not about just prevention but what you after the inevitable intrusion. And that depends on what system you run.
A VPN enabled home network with three machines, a firewall, a windows box and a laptop, could cost you $4000 today CDN. A commercial server of dotcom pages with 3 desktop machines on an intranet under a three machine server, mail, ftp, and http, could be done (without consultation or installation) for less than $8,000.00 CDN hardware costs, with cheapo PC hardware.
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