Recently, I attended The Michigan Simulation Users Group's annual conference. I had a lot of fun. Although, simulation is not my direct area of interest - I find the subject to be extremely interesting. The group contains many highly experienced people in simulation - people with 20+ years of experience in industry.
Anyway, like I said I had a great time at the conference. There were a lot of great presentors. One of them even mentioned agile software development and compared it to simulation. Since I was taking a class in agile software development I thought this was most interesting. The site has some great information on it. I highly recommend you checking it out.