http://www.dakkadakka.com/dakkaforum/posts/list/235538.page
You are very much stuck with named heroes in
WotR. No building your own fluff in Middle Earth, heretic!
Points-wise, you probably want to aim for the 1500/1600 point range when starting. The Fallen Realms have a good mix of decent, rather cheap troops (Haradrim), fairly elite, expensive troops (Easterlings), troops that are expen$ive monetarily but not points-wise (Khand, Mahud), and possibly the most amusing monster in the game (Mumak).
A mumak is 250 points, so get yourself two of them and there's a third of your 1500 point army done. A couple of Ringwraiths (Khamul & the Betrayer are popular) and Amdur Lord of Blades gives you a nasty batch of Epic heroes. Fill in with a couple-three boxes of plastic Easterlings and you've a low-model-count army (for
WotR) that has a chance of doing terrible unfriendly things to your opponent.