1000 Point Team Tournament List

Hey everybody. I'm playing in a team tourney next weekend and wanted to see what people thought of my list. It's a 1000 point tourney, each player gets 500 and must take 1 hq and 1 troop choice. Elite, fast and heavy slots are shared and the team is allowed 1 of each, so if I take heavy my teammate can't, if he takes fast I can't, etc. And vehicles cannot have armor greater than 12. I'm playing Chaos Marines and here's my list...

HQ-Chaos Lord w/ Power Weapon

Troop-9 Khorne Berzerkers
Dedicated Rhino

Heavy-Defiler w/ Twin-Linked Lascannon and Extra Close Combat Arm

Total-499 pts

My teammate is playing Orks and here's his list...

HQ-Big Mek w/ Shokk Attack Gun, Power Klaw, "Eavy Armour, Bosspole, and Ammo Runt

Troop-30 Boyz, 3 Upgraded w/ Big Shootas, 1 Upgraded to a Nob w/ Power Klaw And Bosspole

Troop-Deff Dread w/ 2 Extra Dreadnought Close Combat Weapons, Armour Plates and Grot Riggers

Total-498 pts

So there's the lists. We're both pretty new to the game, open to suggestions and just want to see what people think!