50lbs+ but the full tower steel case is 40lbs almost by itself (Addtronics 7896A)
I googled your case since I had not heard of it. The promo picture makes me laugh.
http://www.addtronics.com/gif/7896A.jpg
over 80lbs.
I run totally silent in a TNN500AF (over 70 just in the case)
what do I win?