Updating my list to include more 2009 gems, what a year for great music! My two absolute favorites are:
Cobalt - Gin
Transcendent, atavistic experimental black metal with a progressive and atmospheric bent.
Helen - We Specialize In Cages
A trippy cocktail of drum n' bass/alternative/nu-jazz, a dash of funk, topped off with dreamy female vocals.
The rest:
My Dying Bride - For Lies I Sire
Weapon - Drakonian Paradigm
Tribulation - The Horror
Exivious - Exivious
Ulcerate - Everything Is Fire
Obscura - Cosmogenesis
Warbringer - Waking Into Nightmares
Heaven & Hell - The Devil You Know
Brimstone In Fire/Pathogen - All Flesh Fades
Suffocation - Blood Oath
Eternal Now - Filipinas 1800
YOB - The Great Cessation
Teitanblood - Seven Chalices
Napalm Death - Time Waits For No Slave
The Chasm - Farseeing The Paranormal Abysm
Altar of Plagues - White Tomb
Immortal - All Shall Fall
Alice In Chains - Black Gives Way To Blue
Baroness - Blue Record
Them Crooked Vultures - Them Crooked Vultures
Nile - Those Whom The Gods Detest
Gorod - Process Of A New Decline
Katatonia - Night Is The New Day
Lost Soul - Immerse In Infinity
Kylesa - Static Tensions
Pelican - What We All Come To Need
Urgehal - Ikonoklast
Krallice - Dimensional Bleedthrough
Shrinebuilder - Shrinebuilder
Cattle Decapitation - The Harvest Floor