Think I'll toss my hat in here for some help with my own Warlock build. By no means is it perfect (and I suspect its a lot worse than I'm thinking. :p ) but I thought it was worth posting for some constructive criticism.

Warlock

Mana Crystal *3
Battle Forge
Suppression Orb
Idol of Pestilence
Mordok's Obelisk
Deathlock
Wall of Fire *2

Flaming Hellion *2

Elemental Wand *2
Regrowth Belt
Moonglow Amulet
Lash of Hellfire
Fireshaper Ring
Elemental Cloak
Gauntlets of Strength
Helm of Fear
Demonhide Armor

Ghoul Rot *2
Cheetah Speed
Rhino Hide
Bear Strength
Vampirism
Regrowth
Cobra Reflexes
Mongoose Agility
Agony *3
Magebane
Maim Wings
Nullify *5
Force Push
Dissolve *3
Explode *2
Dispel *2
Seeking Dispel *2
Fireball *3
Firestorm
Chain Lightning

The idea is to shut out the opponents creatures with Suppression Orb, Idol, Obelisk, and Deathlock, and attack them directly as quickly as possible using the Warlocks powerful equipment and enchantments to keep the pressure high. If the game goes long, then cast the Orb, Idol, etc., while using the Hellions to draw attention away from yourself. Dispels are insanely important in protecting the all important Flail in this deck, as well as the wands if need be for a ranged attack. I tend to cast the first Wand as Dissolve/Explode bait, then cast the second later for its primary purpose.

My openings fall in two ways. If I get initiative, placing the mana crystals/forge is a pretty standard opening.
If my opponent gets initiative and moves even a single zone, I cast Cheetah Speed then Ghoul Rot them. The next round I follow up with a quick rush attack for some opening damage, and start to judge the situation as it comes.

I'm considering including Reverse Magic, Death Link, and Moloch's Torment into the deck, but can't decide on what to remove. One or two copies of  Agony seem like prime candidates, but I can't decide on the other 5/6 points. Any suggestions?