You may have already heard about the Adobe Creative Suite Developer Summit, but there are several classes that appeal directly to this forum, and that you'll find interesting. I've listed some of them below.
Attending the developer summit is easy. You can either attend on-line, or in person. Dates are May 3rd - 6th, 2010 in Seattle Washington. Attendance is free, all you need to cover is your transportation, hotels, and meals.
If you are going to attend in person, please register here
For more details on the conference, go here
Interesting classes related to Lightroom include:
Please contact me if you have any questions: firstname.lastname@example.org