Staxless Stax has been developed by Ray Robillard around the end of 2005. His reasoning is that Smokestack is too slow for the mana cost and based his disruption on Tangle Wire, mana denial and Crucible of Worlds.
He wrote and article about in in July 2006: Staxless Stax...the next evolution of Workshop decks?
Since then, the Tangle Wire have been replaced, one Bazaar of Baghdad has been added, Coalition Relic took over Darksteel Ingot and the sideboard has changed according to the metagame.
Here is a sample list from Ray from April 2007:
1 Black Lotus
2 Chalice of the Void
2 Coalition Relic
3 Crucible of Worlds
1 Engineered Explosives
1 Mana Crypt
1 Mana Vault
1 Memory Jar
1 Mox Emerald
1 Mox Jet
1 Mox Pearl
1 Mox Ruby
1 Mox Sapphire
1 Orb of Dreams
2 Sensei's Divining Top
1 Sol Ring
4 Sphere of Resistance
1 Sundering Titan
1 Trinisphere
2 Triskelion
1 Balance
1 Crop Rotation
4 Goblin Welder
2 Gorilla Shaman
1 Demonic Tutor
1 Vampiric Tutor
1 Ancestral Recall
1 Time Walk
1 Tinker
1 Barbarian Ring
1 Bazaar of Baghdad
4 City of Brass
2 Gemstone Mine
4 Mishra's Workshop
1 Strip Mine
1 Tolarian Academy
4 Wasteland
Sideboard:
2 Aura Fracture
2 Chalice of the Void
1 Engineered Explosives
1 Eon Hub
1 High Market
4 Leyline of the Void
2 Pyroblast
1 Shattering Spree
1 Triskelion
The deck doesn't play itself. It's not your typical stax deck.
You sometimes have to know when to aggressively mulligan, have many options with the tutors. You also have to know which strategy to adopt: aggro, control, or go combo with Welder and Memory Jar.