Mm, Chaos, who can resist? General idea of my army is to Herohammer in assault backed up by heavy shooting. Anyway, here's the list.

HQ
Chaos Lord @177
. Mark of Slaanesh
. Bolt Pistol
. Frag Grenades
. Spiky Bits
. Daemonic Aura
. Daemonic Mutation
. Daemonic Resilience
. Daemonic Speed
. Infiltrate
. Dark Blade

Chaos Lieutenant @156
. Mark of Nurgle
. Pair of Lightning Claws
. Frag Grenades
. Spiky Bits
. Daemonic Aura
. Daemonic Mutation
. Daemonic Speed
. Infiltrate

Elite
Obliterator Cult @140
2x Obliterators

Troops
Noise Marines @144
6x Chaos Space Marines
. 6x Mark of Slaanesh
. Heavy Bolter
. 5x Sonic Blasters

Chaos Space Marine Squad @115
6x Chaos Space Marines
. 6x Mark of Chaos Undivided
. 4x Bolters
. Lascannon
. Plasma Gun

Chaos Space Marine Squad @115
6x Chaos Space Marines
. 6x Mark of Chaos Undivided
. 4x Bolters
. Lascannon
. Plasma Gun

Chaos Space Marine Squad @115
6x Chaos Space Marines
. 6x Mark of Chaos Undivided
. 4x Bolters
. Lascannon
. Plasma Gun

Chaos Space Marine Squad @128
6x Chaos Space Marines
. 6x Mark of Chaos Undivided
. 4x Bolters
. Autocannon
. Plasma Gun
. 6x Tank Hunters

Heavy Support
Chaos Predator @165
. Turret-mounted Twin-linked Lascannon
. Lascannon Side Sponsons
. Daemonic Possession

Chaos Dreadnought @115
. Twin-linked Autocannon
. Extra Armour

Chaos Dreadnought @115
. Twin-linked Autocannon
. Extra Armour

Total: 1485

As you can see, I've got an extra 15 points. I'm thinking maybe Daemonic Possession on one of my dreads (in lieu of XA) or Essence on my Lord.

Rip it apart.