Hi there. I'm relatively new to the hobby and new to posting here. I've had the rule books/codex and some models for about a year, but only recently started seriously assembling/modeling/planning. At first I was mostly just buying based on the "that guy looks cool" philosophy, but now I'm trying to settle down and make something that actually works.
My army is going to be generally Tzeentch-themed, because I like Mr. Raven God, but not super-exclusively. I'm also going for a more shooty-type army. I don't intend (at this point) for this to be a tournament army, but rather just for fun play with my buds/at the local hobby store. My one bud I know I'll be playing against a lot has a frontline Tyranid army, so I'm keeping that in mind. His army is 1500 pts, so I'm looking to be around that limit as well.
Here are the models I own right now:
2 squad of
CSM
1 squad Thousand Sons
3 Chaos Space Marine Bikers
1 Defiler
1 Chaos Sorcerer
1 Chaos Rhino
1 squad of 5 Chaos Terminators.
My tentative army list looks like this:
1x10
CSM w/plasma gun + heavy bolter, Aspiring Champ w/Powerfist, Mark of Tzeentch, Rhino
1x10
CSM w/plasma gun + heavy bolter, Aspiring Champ w/Powerfist, Mark of Tzeentch
1x9 Thousand Sons w/Aspiring Sorcerer(Doombolt), Rhino
1x5 Terminators w/Chainfist, 4xCombi-weapons, Reaper Autocannon (I took the autocannon because I really like how it looks on the model.. so sue me

)
1x Defiler
1x3 Chaos Space Marine Bikers w/Icon of Chaos Glory, 2xmeltaguns
1x Chaos Sorcerer, Gift of Chaos, Mark of Tzeentch.
Total=1468 points.
This is based on the models I have right now. However, I'm open to suggestions for future purchases that might help me streamline/improve the army by swapping guys out. I know Obliterators are really good, and would like to fit some of them in. Dropping the Marks of Tzeentch for Chaos Glory would free up some points, although I do like the Tzeentch theme. Alternate ideas for equipment are also welcome, although what I've listed represents what I've already assembled. But I'm not opposed to buying more models in the future for that sort of variety/altering what I've done.
I'm also interested in suggestions for taking this army up to a 2000 pt variant. I would definitely include Obliterators then, and I understand a fourth unit of troops is good for 2000pt armies. I love tanks and such, and would like to get my hands on a Land Raider or Vindicator eventually. I've also been eyeing Ahriman as a second
HQ, to go with the Tzeentch theme.
Anyway, sorry about the rambling post. Advice/suggestions welcome on everything mentioned above. Thanks!