Best in Slot

Helm
Current - Turalyon's Helm of Triumph (Item) (+815d)
BiS - Sanctified Lightsworn Helmet (Item) [H] (+1530d)
Upgrade 1 - Sanctified Lightsworn Helmet (Item) (+1313d)
Upgrade 2 - Discarded Bag of Entrails (Item) [10] (+1015d)

Neck
Current - Ahn'kahar Onyx Neckguard (Item) (+429d)
BiS - Ahn'kahar Onyx Neckguard (Item) [H] (+555d)
Upgrade 1 - N/A

Shoulders
Current - Turalyon's Shoulderplates of Triumph (Item) (+619d)
BiS - Cultist's Bloodsoaked Spaulders (Item) [H] [Non-Plate] (+732d)
Upgrade 1 - Sanctified Lightsworn Shoulderplates (Item) [H] (+709d)
Upgrade 2 - Sanctified Lightsworn Shoulderplates (Item)

Cloak
Current - Shadowvault Slayer's Cloak (Item) (+416d)
BiS - Shadowvault Slayer's Cloak (Item) [H] (+535d)
Upgrade 1 - Winding Sheet (Item) [H] (+520d)
Upgrade 2 - N/A

Chest
Current - Sanctified Lightsworn Battleplate (Item) (+661d)
BiS - Sanctified Lightsworn Battleplate (Item) [H] (+1518d)
Upgrade 1 - N/A

Bracers
Current - Titanium Spikeguards (Item) (+351d)
BiS - Polar Bear Claw Bracers (Item) [H] (+599d)
Upgrade 1 - Polar Bear Claw Bracers (Item) (+555d)
Upgrade 2 - Bracers of Dark Determination (Item) [HToTC] (+563d)
Upgrade 3 - Icecrown Rampart Bracers (Item) [10] (+543d)

Gloves
Current - Sanctified Lightsworn Gauntlets (Item) (+623d)
BiS - Sanctified Lightsworn Gauntlets (Item) [H] (+1195d)
Upgrade 1 - N/A

Belt
Current - Bloodbath Belt (Item) (+463d)
BiS - Astrylian's Sutured Cinch (Item) [Non-Plate] [H] (+675d)
Upgrade 1 - Coldwraith Links (Item) [H] (+649d)
Upgrade 2 - Coldwraith Links (Item) (+649d)
Upgrade 3 - Nerub'ar Stalker's Cord (Item) [Non-Plate] [H]   (+648d)
Upgrade 4 - Vengeful Noose (Item) [Badges] [Non-Plate] (+609d)
Upgrade 5 - Astrylian's Sutured Cinch (Item) [Non-Plate] (+ _)
Upgrade 6 - Blood-Drinker's Girdle (Item) [10] [Non-Plate] (+594d)
Upgrade 7 - Soulthief's Braided Belt (Item) [10] [Non-Plate] (+593d)
Upgrade 8 - Etched Dragonbone Girdle [10] (+584d)

Legs
Current - Legplates of Painful Death (Item) (+682d)
BiS - Sanctified Lightsworn Legplates (Item) [H] (+1452d)
Upgrade 1 - Sanctified Lightsworn Legplates (Item) (+1188d)
Upgrade 2 - Scourge Reaver's Legplates (Item) [H] (+902d)
Upgrade 3 - Scourge Reaver's Legplates (Item)  (+_)
Upgrade 4 - Battle-Maiden's Legguards (Item) [10] (+875d)

Boots
Current - Footpads of Impending Death (Item) [Crafted] (+574d)
BiS - Frostbitten Fur Boots (Item) [Non-Plate] [H] (+659d)
Upgrade 1 - Blood-Soaked Saronite Stompers (Item) [H] (+636d)
Upgrade 2 - Blood-Soaked Saronite Stompers (Item)  (+_)
Upgrade 3 - Treads of the Wasteland (Item) [Non-Plate] [H] (+602d)
Upgrade 4 - Frostbitten Fur Boots (Item) [Non-Plate] (+591d)
Upgrade 5 - Taldaram's Soft Slippers (Item) [10] [Non-Plate] (+595d)

Ring 1
Current - Ring of Rotting Sinew (Item) (+431d)
BiS - Frostbrood Sapphire Ring (Item) (+459d)
Upgrade 1 - Seal of the Twilight Queen (Item) (+456d)
Upgrade 2 - Seal of Many Mouths (Item) (+454d)
Upgrade 3 - Might of Blight (Item) (+451d)
Upgrade 4 - Skeleton Lord's Circle (Item) (443d)
Upgrade 5 - Thrice Fanged Signet (Item) [10man] (+436d)
Upgrade 6 - Band of the Bone Colossus (Item) (+435d)
Upgrade 7 - Saurfang's Cold-Forged Band (Item) [10man] (+428d)

Ring 2
Current - Ashen Band of Greater Vengeance (Item) (+435d)
BiS - Ashen Band of Endless Vengeance (Item) (+602d)
Upgrade 1 - Band of the Bone Colossus (Item) [i277/i264] (+570d)
Upgrade 2 - Ring of Rotting Sinew (Item) (+485d)

Trinket 1
Current - Herkuml War Token (Item) (+442d)
BiS - Death's Verdict (Item) (+643d)
Upgrade 1 - Whispering Fanged Skull (Item) (+594d)
Upgrade 2 - N/A

Trinket 2
Current - Deathbringer's Will (Item) (+396d)
BiS - Whispering Fanged Skull (Item) (+643d)
Upgrade 1 - N/A

Weapon
Current - Justicebringer (Item) (+1974)
BiS - Shadowmourne (Item) (+2985d)
Upgrade 1 - Bryntroll, the Bone Arbiter (Item) (+2698d)
Upgrade 2 - Bloodfall (Item) (+2630d)
Upgrade 3 - Cryptmaker (Item) (+2559d)

Ranged / Relic
Current -  BiS - Libram of Three Truths (Item) (+496d)
Upgrade 1 - N/A.

Target DPS: 11,986

Based upon Ret BiS EJ Thread.

A Whole New World

While I have always considered myself fairly competitive, especially against other Retribution (Ret) Paladins, due to certain circumstances, the details of which I am not at liberty to describe, the importance of DPS performance vs. other classes has come to the forefront. Although I have been assured that the aforementioned circumstances were outside of the norm and I have every reason to belive they will not occur again, nonetheless I am eager to push my DPS to the maximum even in comparison to other classes. In reading the main posts associated with Ret, from Elitist Jerks:

• Retribution: Updated for 3.3
• Rawr Retribution Model
• Retribution BiS Lists for 3.3
• Ret FCFS Rotation Helper
• Retribution UI: The key to successful facerolling
• Redcape's Ret Spreadsheet v4.1 - Now with User Friendly!
• Pawn Values for all Specs: Updated to 3.3

Looking at the thread on the Retribution UI, I noticed there are three or four Rotation Helpers mentioned.

1. S.H.I.T.: Seriousl Help in Timing
2. Faceroller
3. CLCRet
4. Event Horizon
5. Face Shooter

In the Rotation Helper thread, two are discussed by their authors and users, CLCRet and S.H.I.T. It seems the former is a bit more recent. On pg 15, there is a step by step tutorial with screenshots on how to set up the Internal Cooldown (ICD) tracking.
For Deathbringer's Will, I believe those to be as follows:

• Aim of the Iron Dwarves (Spell ID: 71491)
• Strength of the Taunka (Spell ID: 71484)
• Speed of the Vrykul (Spell ID: 71492)

On pg 10, there is a description of how to use the CLCRet Mod within a macro, using either presets or the full rotation.