I am sure everybody (or almost everybody) knows about it already but in case you don't, I love Hermione/Cedric fics and I have a really nice recommendation: koalathebear has written a fabulous fic in the AU where Cedric is alive (I wish that was the reality!).

Go to her LJ and read it because you'll be missing something great if you don't read it ;) The title is A New School Year and it's another beginning of the Order of the Phoenix. (click in the title and you'll go there)