I am now one NewEgg hat and $50 better off than I was the other day, but my replacement part still has not shipped.  So much for having it overnighted to me.  In addition to the claimed system glitches that kept this from shipping when it was supposed to, their systems showed on Friday that the part was boxed but no tracking number had made it out yet.  This morning, I find an email notification that my $$ has been refunded for the part.  I'm not sure if this is additional goodwill or another mistake, but I'll have to wait until Monday to find out.