For my Skyhook force I'm thinking of taking;

The Baron
2 x 10 hellions, champ, power weapon
2 x 3 reavers, heat lance
2 x ravagers
Razorwing jet fighter

Every is immune to the moving platforms, lots of anti infantry (hellions, ravagers and razorwing) and some anti tank (reavers and razorwing). Not expecting to much armour tho.

Thoughts?

Amazing list, it's surprising how much you can get with Dark Eldar for 1000pts.
Couple of scoring units, dedicated anti-infantry and anti-tank.

Just need to have a practice with it.

Nice list,

Heres mine

Autarch, jump generator, power weapon, fusion gun, mandiblasters
10 Dire Avengers, exarch, power weapon + shimmershield, bladestorm
10 Dire Avengers, exarch, power weapon + shimmershield, bladestorm
10 Warp Spiders, exarch, powerblades, add. death spinner
5 Shining Spears, exarch, starlance, shuriken cannon, withdraw
Warwalker, 2 scatterlasers

What do you reckon?

I would go for vypers over the warwalkers due to the moving platforms, that way you can sit at the back and not worry about falling off!

Other than that good list.

It is amazing how much stuff you can fit in a 1000pts.

What do you think the typical 1000pt marine army will look like?

I dont have any vypers and dont really have the inclination to get any.
I would imagine the average marine force to consist of at least 1 20man assault squad and an abundance of land speeders. Ledgendary points arent worth worrying about in such a small game