The annuals that did come out are all long out of date. There are campaign books for....
-Lustria (campaign rules also included)
-Generals Compendium (General multi-player stuff and other coolness)
-Storm of Chaos (you know the score here)
-Annuals from 2002-2004 (I think, don\'t bother with these, mostly errata fro 6th edition)
The Lustria book has rules for jungle fighting and a loose style campaign system. Both are fine.
I like the Generals Compendium best for inspiration and lots of cool ideas. My favorite is ship to ship fighting.
I think thats what you were asking. There was a novel series featuring a girl raised with a tribe of ogres. I thought it was pretty bad, but I generally think poorly of all the non-Abnett GW fiction.
The best source I find for inspiration and fluff is the army books themselves. The Ogre book being a steriling example of this.