Worked that night too (although not for quite that much money...) along with a colleague, plus the missus came in too and brought a TV and bottle of bubbly.
Was there to support all the European customers in case things went tits-up, and the company had set up a fairly nice system to help us do the support (we're the European arm of a global company, the db was worldwide).
So comes the time, and of course we only had problems with the "millennium bug" on one system. And yes, of course it's the one you guessed, the support database went gaga. But as there was absolutely no issue from any of the customers, we just savoured the irony along with the champagne, the extra pay and the coverage on TV.