Here's my new way to get attention:
Sent: <sometimes today>
To: <managers>, <human resources dept.>
I'm writing to inform you of my decision to resign from my position of <utnapistim's position> in <company>, as of the 1st of October (as last working day).
Please note that I was due to leave on holidays on the 3rd of September (Monday), for a month and I'd like to continue with this schedule. I believe this should be possible, especially since I will continue to be available for contact after the 1st of October (I will still be in Limassol).
+357 (25) xxxxxx (desk)
+357 (99) xxxxxx (mobile)
+357 (25) xxxxxx (fax)
<company> > <company motto>
Since I sent it this morning, I've been called, emailed and looked for, by people I hadn't seen in months, and the first ten minutes after sending the mail, my office phone felt like a hot-line.
Keep it up guys, you might just convince me I don't want to leave this place :)
... and by the way, I'm changing my workplace.