Are you going to OSCOM?
An experiment in Ridiculously Easy Group Forming, if you are going to OSCOM, simply trackback, pingback, link to (assuming you have full content in your rss and an rss autodiscovery link tag in your weblog), email, or simply comment on this weblog entry.
By using trackback, pingback, or simply linking, you are helping spread the word about this weblog entry, and hopefully others who are going will then see it and do likewise.
Then check back periodically (or subscribe to this comment's rss feed) to see who else is going.