Here's a roster I whipped up for fun... wanted to have two dreadnaughts since I just got my Forgeworld dread and still want to use the old one. Just looking for general comments and minor changes.

Chaos Lord (10#)
1 Chaos Lord
General; Lightning Claw (x1); Combi-bolter
Mark of Chaos Undivided
Daemonic Essence
Daemonic Resilience
Daemonic Strength
Terminator Armour
9 Chaos Space Marines
Close combat weapon (x9); Bolter (x9)
Mark of Chaos Undivided

Dreadnought (1#)
1 Dreadnought
Twin Linked Lascannon; Dreadnought Missile Launcher
Daemonic Possession
Parasitic Possession
Smoke launchers

Dreadnought (1#)
1 Dreadnought
Dreadnought Close Combat Weapon; Twin-linked Bolter; Plasma Cannon
Daemonic Possession
Parasitic Possession
Smoke launchers

Chaos Space Marine Squad (8#)
7 Chaos Space Marines
Close combat weapon (x7); Bolter (x7)
Mark of Chaos Undivided
1 Aspiring Champion
Close combat weapon (x1); Combi-bolter
Mark of Chaos Undivided

Chaos Space Marine Squad (10#)
9 Chaos Space Marines
Bolt Pistol (x9); Close combat weapon (x9); Frag Grenades
Mark of Chaos Undivided
1 Aspiring Champion
Plasma Pistol (x1); Powerfist (x1)
Mark of Chaos Undivided
Daemonic Mutation
Daemonic Visage

Biker Squad (6#)
5 Bikers
Close combat weapon (x5); Twin-linked Bike Mounted Bolter (x3); Meltagun (x1); Plasma Gun (x1)
Mark of Chaos Undivided
1 Aspiring Champion
Close combat weapon (x1); Powerfist (x1); Twin-linked Bike Mounted Bolter (x1)
Mark of Chaos Undivided
Daemonic Mutation

Chosen (6#)
Mark of Chaos Undivided
6 Chosen Terminators
Power Weapon (x6); Combi-bolter (x4); Reaper autocannon (x2)
Mark of Chaos Undivided
Terminator Armour

Total Roster Cost: 1499