Ok I'm with chexmix282 on eldar
troops 2 squads of guardians 20 with star cannon ( look at the last White dwarf to see how they go)
thats it
fast attack
swooping hawks and shining spears both with no exarch ( some powers may make them O.K.)
heavy support plat forms ( no guide)
heavy support 1 wraith lord with just the sword( no psykers for extra funs more than one may be hard to take down)
Elites are hard but
quins with no shadow seer or kisses
5 dragons on foot
last one could actually not suck bad
10 wraith guard (there is a part of me that wants to put a warlock that does not have spirit seer in there as a almost troop choice)
Hq with the forces above I'd go Autarch with spider jump generator ( as it could suck him into the warp)
dave l