This year's conference will be in Orlando, FL October 15 to 18. Here's the link to the conference site:
http://www.businessobjectsevents.com/americas2007/controller.cfm
I highly recommend the conference. There is always lots of good information about Business Objects in general and Crystal in particular.
Like last year, there will be a Developer "sub-conference" on Monday and Tuesday. Usually there is a lot of Crystal information during this part of the conference.
Also, I will be presenting a session again. This year my topic is User Auditing in BusinessObjects XI With the .NET SDK.
-Dell