Last friday Checkpoint and InfoNet have prepared a DDoS seminar in Ankara,
I had created a lab similar to http://www.youtube.com/watch?v=5rhw7zsiarQ&feature=plcp that I have posted earlier.
After showing some attack vectors the main subject was to try to explain the reason of why we need a DDoS mitigation device other than getting this as a service from ISP and explained why its a network design problem and how to deal with it on every hop count