As far as military surplus electronics goes, the
end-all and be-all will
 always be Fair Radio Sales of Lima, OH.  They're even on the web now:
 
http://alpha.wcoil.com/~fairadio/ 
I have been there a couple of times, and while it is Mecca for the vintage
(especially military) radio collectors, they have very little computer
stuff.
William Donzelli
william(a)ans.net