This army did brilliantly against a PK-heavy Bret army yesterday. So I thought I'd post it and see what people thought of it.
Lord O'Khorne: Slaughterer's Blade, Armour of Damnation, Gaze of the Gods, shield
19*Chaos Warriors: Shields, S/M/C, MoK, Banner of Rage
5*Marauder Horsemen: Throwing Axes, spears, shields, M
5*Knights of Chaos: M
Bray Shaman:Braystaff, lvl1, 2*Dispel Scroll
23*Beast Herd: 12 gor, 11 ungor, S/M/C
10*Centigor: light armor,spear, shields, S/M/C
S/M/C = Standard/Musician/Champion. yes I know I can't use the Lord's shield in CC. I wanted to fill the last 3 points with something.
Please note that I play my Chaos for effectiveness, and other armies (DE, Dwarves, HE) for fluff. So please let me know what you would change to make the army more effective, rather than more fluffy.