Here's the army as it now stands:
The list so far:
General
2 Sorcerers
2 Heroes
1 Hero on Dragon (the Daemon Prince)
2 Chaos Knights
2 Chaos Warriors
2 Ogres
4 Chaos Marauders (the daemons)
1 Chariots
4 Hounds
1 Dragon Ogres
1 Harpies
1 Spawn
That's just a bit over 2000 points I think. I'm pretty happy leaving the army at this stage for a bit but before too long I'd like to pick up and paint the Khorne hero on Juggernaut that comes with the Daemon Character pack (to lead the Khorne contingent), the Epic Mortarion figure (to lead the Nurglers) and another unit of Harpies. Then (if I find myself playing bigger games) I think my pile of unpainted lead includes:
Nurgle Daemon Prince
6 units of 'proper' Marauders
2 units of Marauder horse
2 units Chaos Knights
3 units of Chaos Warriors
Hero on Chaos Dragon