as soon.as it's done, of course!
what I was thinking as a possible idea would even be a cron job to send the certificates directly to the printer perhaps with a letter printed in between each certificate.
then it'd just be a matter of signing the letters and sticking them all in envelopes!
I've just got funding for the hosting etc. of my course so it'll be a wee while before any such dreams come to fruition (hence the forum query!)