Have a look at my thread here for some more ideas:
http://www.dakkadakka.com/dakkaforum/posts/list/576576.page
I often play
DW at 1000 points, and it is a true challenge to fit things in that you need. They are not competitive, but it is great when you pull off a win.
Personally I'd load up with
TH/
SS terminators. Nothing else will cut it. Shooty terminators are terrible for their points, and
LC are just a bad trade off compared to
Str 8 and
ap 2, with a 3++ save. For heavy weapons
AC and
CML are the preferable choices, though I often take a
HF if using belial to deepstrike them.
I'd recommend mortis dreadnoughts if you are going to use dreads (not contemptor mortis though, too expensive points-wise now for
DW at 1000pts) with either Lascannons or possibly autocannons (the lascannons give it better anti-vehicle, which may be needed depending on your meta). They have skyfire, which can be useful, and are a better source of heavy weapons than a normal dread. (Also
DA can have more than 1, so it will be fluffy.
At the moment I am trying to use a landraider in the list, to prevent enemy damage by having a big moving
LoS blocking wall on the board. I am split between the achilles or the spartan at the moment, as to which one I prefer.
You might want to try using the
FNP standard to help survivability (save 2 terminators with
FNP and the banner will have been worth it). Personally I don't like how much it restricts your movement.
The final thing I try to use is a squad of Deathwing knights, as they are the most durable and point efficient terminator available to you. They are not scoring however.