Greys, Gory Blister is fantastic technical death metal (not overproduced really) from Italy...they sound like a more melodic and fast-paced version of Death's mid-era prog death-y album.
Pretty much all of Immortal's album covers are off-putting, especially Battles in the North, although it is a great album. Satyricon's Dark Medieval Times looks like a doodle out of some kid's school notebook.