Has anyone set one of these up for a few servers. Not self signed certificates, but establish a local root and then use that so sign a small number of certificates.
Yes. I my main wireless is WPA2/Enterprise which uses 802.1X Authentication with certificates to verify the authenticity of both parties. I have a CA and several certificates; one for each wireless client.
Not sure if it's the same thing you're asking, but I've used OpenVPN and easy-rsa to generate some server/client keys for establishing a secure VPN connection between two home routers.
Details pertaining to certificate generation are about half way down the page...