I'm scheduled to give a talk at next month's Auckland Web meetup --- about Firefox 3 stuff, of course. It turns out that Nigel Parker from Microsoft will be at the same event giving the Silverlight pitch. When it comes to marketing, Nigel's a pro, so that should be interesting.
The indomitable Chris Double should be there with me and we will have some interesting demos to show, although perhaps less flashy than others :-). We'll want to strike the right balance, though, pushing not just Firefox but our message about the open Web.
Anyway, it should be a fun evening!