Hi Roger,

Depending on the overall plan of the course, selections from my 2007 
book, _Reclaiming Marx's Capital: A refutation of the myth of 
inconsistency_ (Lexington Books), might be appropriate. A lot of it 
focuses on Marx's value theory and falling-rate-of-profit theory. As 
Tony Brewer said, if both of these theories fail, not much is left, 
but the book argues that they haven't been proven to be--and 
aren't--internally inconsistent. Some of it is a bit technical, but 
the overall argument is set out in a non-technical manner in chapter 
1.  It's in paperback.

Andrew Kliman