Great book: I look at it often.
I was one of those fortunate to hear the author speak at Timonium in 2004. He presented the advance copy and shared some of his research and writing process with us. Needless to say, the experience heightened my anticipation, and I wasn't at all dissappointed when I received my copy. Robert Elgood is a gentleman and scholar and has set the bar quite high.
Now, if I could find a reasonably priced copy of "Islamic Arms and Armour", I'd be a happy man...