BZ Media does a great job organizing the annual Eclipse World conference. This year is is Oct. 28-30 in Reston, VA, same place as last year. They have just announced their technical program and it looks really strong. If you are building enterprise Java applications with Eclipse, there is a lot there for you.
As with all conferences, the early bird registration price gives you the best value and is available until July 18. Looking forward to seeing everyone again at this conference.