I should be able to make it to Ard Boyz this year...here is the list I'm thinking of bringing, not a very conventional Eldar list, but I've used it for a long time and it seems to work alright.
I've listed the units according to their roles, not their unit type. I'll try to walk you through my thoughts...
2500 Pts - Eldar Roster - Alatoic 2500
The Anvil Footsloggin right up the center of the board to the middle ground objective if there is any.
HQ: Eldrad Ulthran (1#, 210 pts)
1 Eldrad Ulthran @ 210 pts ((pp.50-51 & 61 Eldar); Independent Character; Psyker; Doom ; Eldritch Storm ; Fortune ; Guide ; Mind War ; Divination; Ghosthelm; Rune Armour; Runes of Warding; Runes of Witnessing; Spirit Stones; Shuriken Pistol; Witchblade; Staff of Ulthamar)
Troops: Wraithguard (11#, 399 pts)
10 Wraithguard @ 399 pts ((pp.46 & 62 Eldar); Fearless; Wraithsight; Wraithcannon x10)
1 Spiritseer (Warlock) ((p.27-28 & p.60 Eldar); Psyker; Conceal ; Fleet; Spiritseer Upgrade; Rune Armour; Shuriken Pistol; Singing Spear)
Heavy Support: Wraithlord (1#, 155 pts)
1 Wraithlord @ 155 pts ((pp.47 & 66 Eldar); Unit Type: Monstrous Creature; Fearless; Wraithsight; Flamer x2; Bright Lance; Missile Launcher)
Rear Objective holder
Troops: Pathfinders (Rangers) (6#, 144 pts)
6 Pathfinders (Rangers) @ 144 pts ((pp.38 & 64 Eldar); Fleet; Infiltrate; Move Through Cover; Stealth; Ignore Difficult Terrain; Pathfinder Stealth; Scouts; Pathfinders; Shuriken Pistol x6; Ranger Long Rifle)
Counter Assault unit...no not counter charge...this is the unit I try to put against the enemies best assault troops
HQ: Avatar (1#, 155 pts)
1 Avatar @ 155 pts ((pp.24 & 61 Eldar); Unit Type: Monstrous Creature; Fearless; Daemon; Inspiring; Molten Body; Wailing Doom)
Troops: Dire Avengers (10#, 162 pts)
9 Dire Avengers @ 162 pts ((pp.30 & 64 Eldar); Fleet; Avenger S-Catapult)
1 Dire Avenger Exarch (Fleet; Defend ; Power Weapon; Shimmershield)
Harassers...buzz / warp around all game then grab or contest a late game objective
Troops: Dire Avengers (11#, 297 pts)
9 Dire Avengers @ 297 pts ((pp.30 & 64 Eldar); Fleet; Avenger S-Catapult)
1 Dire Avenger Exarch (Fleet; Bladestorm ; 2 Avenger SC)
1 Wave Serpent ((pp.45 & 63 Eldar); Unit Type: Vehicle (Skimmer, Tank, Fast); Energy Field; Spirit Stones; TL Shuriken Catapults; TL Bright Lances)
Fast Attack: Warp Spiders (5#, 152 pts)
4 Warp Spiders @ 152 pts ((pp.36 & 65 Eldar); Unit Type: Jump Infantry; Warp Jump Generators; Death Spinner)
1 Warp Spider Exarch (Unit Type: Jump Infantry; Withdraw ; Hit & Run; Warp Jump Generators; Powerblades; Death Spinner x2)
Hammer #1 These gals hunt down the enemy elite unit with high armor saves.
Elite: Howling Banshees (11#, 337 pts)
9 Howling Banshees @ 337 pts ((pp.31 & 63 Eldar); Fleet; Banshee Mask; Power Weapon; Shuriken Pistol)
1 Howling Banshee Exarch (Fleet; Acrobatic; War Shout ; Banshee Mask; Shuriken Pistol; Executioner)
1 Wave Serpent ((pp.45 & 63 Eldar); Unit Type: Vehicle (Skimmer, Tank, Fast); Energy Field; Spirit Stones; TL Shuriken Catapults; TL Bright Lances)
Firesupport...my anti horde punch
Heavy Support: War Walker Squadron (3#, 180 pts)
1 War Walker Squadron @ 180 pts ((pp.44 & 66 Eldar); Scouts)
1 War Walker (Scatter Laser; Scatter Laser)
1 War Walker (Scatter Laser; Scatter Laser)
1 War Walker (Scatter Laser; Scatter Laser)
Hammer #2...my anti vehicle unit, sure most every unit in my force can deal with tanks in one way or another, but none better than these guys.
Elite: Fire Dragons (6#, 131 pts)
5 Fire Dragons @ 131 pts ((pp.32 & 62 Eldar); Fleet; Fusion Gun; Melta Bombs)
1 Fire Dragon Exarch (Fleet; Tank Hunters; Firepike; Melta Bombs)
Heavy Support: Falcon (1#, 175 pts)
1 Falcon @ 175 pts ((pp.42 & 67 Eldar); Unit Type: Vehicle (Skimmer, Tank, Fast); Transport Capacity: 6 models; Holo-Field; Spirit Stones; Scatter Laser; TL Shuriken Catapults; Pulse Laser)
Total Roster Cost: 2497
I'll let you know how I do.