I'm worried about security. Here's the setup:

          Verizon DSL Modem

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Linksys EtherFast Cable / DSL Router

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         ReplayTV  Win2K Box

The router has the ability to work with ZoneAlarm Pro in order to protect PCs connected to it. Should I purchase a license for ZoneAlarm Pro in order to protect my computer? The router will enforce security with ZAPro once I've given it my ZAPro license key.

And what about the ReplayTV? Will this also protect it? Or should I look for some other way to protect both, or not bother at all? Any help from one of you networking smarties would be appreciated.