Death Knight Green Quality Starting Gear

The Death Knight starts with a full set of green items

Head - Acherus Knight's Hood
Neck - Choker of Damnation
Shoulders - Acherus Knight's Pauldrons
Back - Acherus Knight's Shroud
Chest - Acherus Knight's Tunic
Wrist - Acherus Knight's Wristguard

Hands - Acherus Knight's Gauntlets
Waist - Acherus Knight's Gridle
Legs - Acherus Knight's Cover
Feet - Acherus Knight's Greaves
Finger 1 - Plague Band
Finger 2 - Corrupted Band
Trinket 1 - Nothing
Trinket 2 - Nothing
Relic - Nothing

And after a couple of very easy quests, you'll get your first weapon.

Weapon - Runed Soulblade