Freedom From Religion Foundation national convention is October 10-12, 2008 in Chicago. Details: http://ffrf.org/events/2008/  It will have Daniel Dennett amongst many other great speakers.

Atheist Alliance national convention is September 25-28th in California. Details: http://www.atheistalliance.org/conventions/2008/AAIConventionDescription2008.pdf  It will have Christopher Hitchens along with many other great speakers.

The American Atheist event in Minneapolis went very well.  I especially liked Dawkins & PZ Myers talking about the adventure they had trying to see Expelled. 

I’d encourage anyone reading this to consider attending one or both of the events above.  I will likely be at both.