You could probably drop the extra armor on that pred, with so many points sunk into the armament even a shaken result would be disastrous. Chosen can take more weapons, might I suggest a plasma gun and a flamer, or two more meltaguns? If you drop both the extra armor and the aspiring champ you can afford it.

If it were me I would give each squad one plasma and one melta, but at 1k points you probably run them pretty close together, and the enemy probably isn't going to throw a whole lot of diverse threats at you.

All in all, i approve

For 1000pts it looks good. I'd try and avoid mixing specials within squads because they end up not performing as well in either field rather than performing very will in one. Its not really worth the trade off. The same applies to your chosen. Their mix of weaponry doesnt really manke them very good at anything. Try and choose a role for them and then equip them for that role, they will perform much better. Your a little low on anti-horde so giving them four of them flamers and a rhino and changing WoC on your DP to nurgles rot would probablt help a lot.

Good little list