I wanted to see what you guys think. The idea is to hit one flank really hard and to hit it reliably.

2 x Autarchs with fusion pistols (could go with either the fire dragons or the dire avengers)

3 x 5 man fire dragon squads in wave serpents with eldar missile launchers

4 x 5 man dire avenger squads in wave serpents with eldar missile launchers and shuriken cannons

2 x 3 war walkers with 2 scatter lasers each
1 x 3 war walker with 2 shuriken cannons each

This would give me 7 long range strength 8, 17 melta, 78 strength 6 and 30 strength 4 shots as well as the ability to have reserves come in on a 2+ second turn. The obvious drawback is no psychic abilities.