also keep tabs on the apocalypse section of the gw website - they will be adding more and more formations and such to it.
but pretty much, use the warlord titan was a rough guide and just go for the eldar versions of all the weapon systems! basically, it should have a giant Sd weapon and at least 6-8 of the eldar versions of void shields. (IIRC, the imperial warlord has 8 or 9 shields!

)
cheers!