Well, I'll be a master of EF4 when this is all said and done

I apparently have fallen prey for a classic Entity Framework 'gotcha'.  Null ObjectContext and needing to play with EntityKeys.  Not quite sure how to do it with an EntityCollection, so, like always, I posted the details on Stack Overflow: http://stackoverflow.com/questions/6195167/problems-trying-to-attach-a-new-ef4-entity-to-objectcontext-while-its-entity-coll