The registration for O'Reilly Media's 2008 Open Source Convention is now open. Register before June 2 to get a $250 Early Bird Discount. That's almost a whole tutorial for free! This year's Perl track has several exciting talks, and many that you haven't seen at a conference before.
At OSCON you can also take part in the ancillary Perl activities that happen after hours, too. That's where most of the fun is, and that part is complimentary with your conference registration.