Cheers for yet another fine posting Foxglove, as can't wait till I get the opportunity put my feet up and watch them all the way through properly
Here's my own small contribution to the large feast of good stuff you've given us, a few clips from a series on famous sieges I enjoyed watching a short while back on the history/discovery channel
http://www.youtube.com/playlist?list=PLLb4Aujw26R44LxhDjSag6qmoGmVgpeBZ