Well, here are something what I consider brutal...
AUTOPSY: Mental Funeral
Very dirty-sounding and sick material. Sometimes also distressing slow and sludgy. Reifert's drumming and vocals are inimitable.
THE BERZERKER: debut album and forth coming second assault
One of the most brutal bands nowadays. They mix industrial and grindparts and have very original sound.
http://www.theberzerker.com
ROTTEN SOUND: Murderworks
More grind core, but anyway, it rocks like hell! They've got maybe the fastest drummer in Finland, so you can expect fast and hellis ride...
http://www.rottensound.com
VOMITORY: Revelation Nausea; Blood Rapture
Good ol' Swedish Death, but it has also some grind parts. No mercy, just brutal bludgeon...
http://www.vomitory.net
Also classics like Obituary, Cannibal Corpse, Deicide and Morbid Angel are trustworthy, but every REAL metalhead owns their all albums already, right?
And of course, my band MENTAL TERROR is also superior! Check the songs and buy our record!"!
http://wwterror.cjb.net
http://www.mp3.com/mental_terror
BTW, brutal reviews of brutal albums in address:
http://metalhel.cjb.net