LS WoW: Oh, yeah...

4.0.1 is expected to hit tomorrow. This will bring about the "class and system's changes" part of Cataclysm. In simpler terms: all your toons and how you play them just got FUBAR'd but the new content won't show up until later.

It's Elitist Jerks reading time folks. Although, everyone's still sorting what works there by and large too. Soooo, um... good luck...

Update: Someone else has been kind enough to do a class/spec info roundup. Enjoy.

Death Knight
Elitist Jerks: Blood Tanking in 4.0.1
PwnWear: Blood Tanking Compendium
Elitist Jerks: Frost DPS | Cataclysm, You Found Me
Elitist Jerks: Unholy DPS | Cataclysm, All At Once
Consider It: Blog by the EJ main theorycrafter/poster
DK Sim: Gear, Spec, Glyphs, and Rotation simulations

Druid
Gray Matter: Moonkin Guide to Patch 4.0.1
Quieth's Quips: Moonkin Guide to 4.0
Relevart's Druid Reliquary: Moonkin Class Guide
Sunfyre's Nest: 4.0 Rotation and Glyphs
Syrco-Owl: Moonkin in 4.0.1

The Fluid Druid: Kitty Dps in 4.0.1
Feral Aggression: 4.0.1 Kitty Primer
Mew: Feral Druid DPS Analyzer
Think Tank: The 4.0.1 Feral Specs, Glyphs, Gear post
Allison Robert, WoW Insider: Bear Druids in Patch 4.0.1

Tree Bark Jacket: Tree Patch 4.0 Guide
Restokin: Resto Druid Healing Guide
Rank 4 Healing Touch: 4.0.1 Primer Resto Druid Basics and ICC 25 HM
RestoDude: Resto Druid Guide New

Hunter
MMO Champ Forums: 4.0.1 Hunters
The Brew Hall: Hunters Patch 4.0 Some Thing to Expect
Warcraft Hunters Union/WoW Insider: Scattered Shots: Prepare Your Hunter for Patch 4.0.1
Warcraft Hunter's Union: Beastmastery Hunter Patch 4.0.1 Talents Rotation and Glyphs
Warcraft Hunter's Union: Marksman Hunter Patch 4.0.1 Talents Rotation and Glyphs
Marks-365: Marksman Talents in 4.0
Warcraft Hunter's Union: Beastmastery Hunter Patch 4.0.1 Talents Rotation and Glyphs
Pets: Warcraft Hunters' Union

Mage
Mana Obscura: The Mage 4.0 Compendium
TotalBiscuit: Arcane Video Guide
TotalBiscuit: Fire Video Guide
Great Balls of Fire: Fire Raiding Builds Video
TotalBiscuit: Frost Video Guide
Great Balls of Fire: Frost Raiding Builds Video

Paladin
Kurn's Corner: What Holy Paladins Need to Know for 4.0.1
Blessing of KingsHoly Paladin Spec and Glyphs in 4.0.1
Righteous Defense: Everything You Need to Know about Prot and 4.0.1
Ret Pally: Ret Pally 4.0: Holy Shift

Priest
Dawn Moore, WoW Insider: Sp[iritual Guidance: Reforging, Gemming, and GCD Tactocs for 4.0.1
Dawn Moore, WoW Insider: Spiritual Guidance: Finishing Wrath Raids as a 4.0.1 Healing Priest
Tales of a Priest: 4.0 Survival Guide – Holy & Disc Specs, Glyphs, and More
Press H for Heals: Discipline 4.0.1 Guide
World of Matticus: Raiding Discipline for Priests in 4.0.1
World of Matticus: Smite Healing with Atonement Spec (balls of granite required)
Shadowpriest.com Forums: The 4.0.1 Checklist

Rogue
Elitist Jerks: 4.0.1 Rogue FAQ
PVE Rogues: 4.0.1 Mutilate Talents
PVE Rogues: 4.0.1 Combat Talents
Elitist Jerks: Combat Spreadsheet 4.0.1

Shaman
Myrddin: The Enhancement Shaman 4.0.1
Windfury, Enhancement: Are you ready for 4.0.1?
Totemspot: 4.0.1 The Elemental Guide
Sarah Nichol, WoW Insider: Totem Talk: Elemental Shaman Changes for Patch 4.0.1
Life in Group 5: The Resto Shaman's Guide to 4.0.1
Flow: Patch 4.0 Resto Shaman Build Speculation

Warlock
Optec: Cataclysm Warlock Changes Guide part 1
Optec: Cataclysm Warlock Changes Guide part 2
The Warlock's Den: 4.0.1 Cata Destro Rotation Spec
Undercity: 4.0.1 Destro Warlock Rotation
Forsaken Few Guild: Demonology in Cata

Warrior
Got Warcraft? The Cataclysm Warrior Guide
Naithin: Fun in Games: Prot Warrioring at 80 in 4.0