Thanks for the suggestions, I acutally had a list with a razorwing that I was looking at and didnt go with. I currently do not have any Wracks, tho they are a unit I have plans to pick up.
I ran with the second list this weekend and decimated both opponents. The first game my opponent didn't get a second turn and the game was over in 15 min. Second game lasted 4 turns but I did not loose a single model.
I will be moving up to a 1000 pt list in 2 weeks and will post it here for suggestions soon.