Agree with Pain of Salvation blowing DT away.
Also agree with the guy that said The Fragile is the best album ever...well, I'm not so sure what my favorite album is anymore, but when someone asks that's the answer they get.
I recommend (not all of the same genre, so don't stop if the first turns you off):
Despised Icon - Bulletproof Scales off of The Healing Process Album
Burst - Where the wave broke off of Origo
Between the Buried and Me - More of Myself to Kill off of Self Titled
Dillinger Escape Plan - The Mullet Burden off of Under the Running Board
Dog Fashion Disco - 9 to 5 at the Morgue off of Anarchists of Good Taste
God Lives Underwater - Dress Rehearsal For Reproduction off of Life in the So-Called Space Age
Into the Moat - Empty Shell off of The Design
Ion Dissonance - Play Dead and I'll Play Along off of Solace
Mastodon - Blood and Thunder off of Leviathan
mewithoutYou - Gentlemen off of [A-->B] Life
ohGr - Water off of Welt
Opeth - Bleak off of Blackwater Park
OSI - OSI off of Office of Strategic Influence
Pain of Salvation - Martius/Nauticus II off of Be
Pelican - Red Ran Amber off of The Fire in our Throats will Beckon the Thaw
Porcupine Tree - Synesthesia off of Up the Downstair
Remembering Never - For the Love of Fiction off of Women and Children Die First
Silverchair - Tuna in the Brine off of Diorama
Strapping Young Lad - Oh My ****ing God off of City
Sunna - Forlorn off of One Minute Science
Agony Scene - Scars of Your Disease off of Darkest Red
Dave Weckl Band - Wake Up (i like the live version best)
Future Sound of London - Divinity off of Isness
Polyphonic Spree - A Long Day Continues,We Sound Amazed off of Together We're Heavy
Tool - The Grudge off of Lateralus
VAST - Touched off of Self Titled
Wilco - I am Trying to Break Your Heart off of Yankee Hotel Foxtrot
xBishopx - Old Habits off of Suicide Party
Live - The Dolphin's Cry off of Distance to Here
Meshuggah - In Death - Is Life off of Catch 33
Alright, alright, I'll stop...I think I could go on for awhile