I'll be giving a presentation about Drools in general (and some more details on Drools Flow specifically), on the first Belgian JBoss User Group, this Friday November 7th in Huizingen. The event starts at 17h. There will additional presentations from Nicolas Leroux on the latest development methods using Java EE, Seam, Hibernate, etc. and from Alexey Loubyanski on the new features of the upcoming JBoss AS 5 release.
All the information can be found on the Belgian JBug website: http://www.jbug.be/
As far as I know, the maximum capacity has not yet been reached so do not hesitate to register if you are around and interested in Drools, any of the other topics or just in JBoss in general !