I've been running the following at 2000 points the last couple weeks, and it's been treating me well:

HQ:
(210) Eldrad
(155) Avatar
Elite:
(192) 10 Howling Banshees: Exarch w/ Executioner, Acrobatic, War Shout
Troops:
(386) 10 Wraithguard: Warlock w/ Spiritseer upgrade, Embolden
(100) 10 Guardians w/ Eldar Missile Launcher
(100) 10 Guardians w/ Eldar Missile Launcher
(152) 10 Dire Avengers: Exarch w/ Dual ASC's, Bladestorm
FA:
(174) 6 Warp Spiders: Exarch w/ Dual Deathspinners, Powerblades, Withdraw
HS:
(217) 5 Dark Reapers: Exarch w/ Tempest Launcher, Crack Shot
(155) Wraithlord: 2x Flamers, Eldar Missile Launcher, Bright Lance
(155) Wraithlord: 2x Flamers, Eldar Missile Launcher, Bright Lance

The biggest problem I have currently is breaking open vehicles, particularly light transports. There are a total of 6 long-range S8 shots, one meltagun, and the 10 wraithcannons. The only reliable way I have to get at vehicles is at extremely short range, often by punching them with a wraithlord. So while dropping a wraithlord is the easiest way to cut out 150 points to get down to 1850, it's also making a weak area even weaker... which I don't like. One option is to drop the wraithguard down to a 5-6 man squad and add a third guardian team, but then my expendable cover saves become more important than the squad they're protecting. I could pull the dire avengers, but similarly going down to 3 scoring units (two of which are prone to suiciding for the wraithguard) is problematic again. Anyone have suggestions on a way to tone things down somewhat evenly through the list, rather than just taking one full squad, since they all have a fairly key inter-locked role to fill currently?