The 2008 SPSS Europe Directions will be in Athens, Greece. I am likely to attend. The 2007 North America conference is in Orlando, FL in October. I am not likely to attend. The North American conference has more attendees, but if forced to choose … I choose Athens.
The Data Warehouse Institute seems to have a promising line up of courses. I think it a good idea for any data miner to get more familiar with that world. They also have a conference.