Generating fictitious server certificate

We've managed to publish Sharepoint through ISA to our outside users. Now
here's the issue. Let's say the sharepoint server is called 'sharep', so
people on the net can log into our site by navigating to
https://sharep.domain.com. We're not sure how comfortable we'll be with
broadcasting the server's name to the outside world, so we'd like people on
the outside to navigate to it by going to http://home.domain.com.
So the problem is this. We don't exactly have a server named 'home',
otherwise we have a fully functional PKI, generating certificates isn't an
issue. So is there a way to generate an SSL certificate for home.domain.com,
other than taking a computer, installing Server '03, calling it 'home',
getting it a certificate, then exporting it to ISA?
Or could somebody just let us know that that the security benefits are
marginal at best, and it's not worth the trouble?

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Ron B.
mrbiggs.net


Ron B.