Here's a cool idea for a keynote speaker -- Doug Roberts. While Doug
is most famous for setting up the blog
(http://lanl-the-real-story.blogspot.com) that in large part took down
the former LANL director, Pete Nanos, he also is well known for his work
on large scale simulation, esp. EpiSims
(http://www.ccs.lanl.gov/ccs5/apps/epid.shtml). He now works for RTI
international doing disease ABM on the Teragrid
(http://www.teragrid.org). He's active on a mailing list I'm on, and
is a nice and articulate guy..