I came across this article while doing research on actual weapon weights. I was working on some relevant game mechanics at the time. I noticed, when browsing some of my older gaming material, that the stereotype of the heavy, unwieldy blade is perpetuated even in games. I decided, after checking (a labor intensive task indeed) some of this fellows references, that others may find this article as interesting as I did.
http://www.thearma.org/essays/weights.htm#.VbTnL_lVhBc
Enjoy.