Ah, I got the last book I ordered in the mail today - Tolkien and the Great War:  The Threshold of Middle-earth by John Garth.  Note:  I'm not recommending these books I list here - aside from The Sign of the Beaver, I haven't read these books yet.  The subject matter interests me, but I've heard praise and criticism on all of them.  Until I read them, I reserve judgement.

That reading list is quite long, so don't expect these finished soon.  But, I figure if I can find these books at a decent price, I might as well buy them. 

- Jim