Today I got two mails from StartSSL that my certificates (valid for one year) are about to expire. So I went through the process of obtaining new ones, and just now I finished installing them (one on my webserver for https://patrick-nagel.net and one on my mailserver (mail.patrick-nagel.net)). I think it took me half a week to figure everything out the first time (one year ago), but this time it went quite smoothly, within an hour or so.
Thanks to StartCom for that service! 🙂