Based in this list, there a lot of albums I would recommend to you:
Ministry - The Dark Side of the Spoon, Animositisomina, Psalm 69, Side Trax (these are all solid Ministry records)
Wolf Eyes - Burned Mind, s/t, Slicer (self-titled is goofy and fun times, stands out as very bizarre and almost comical compared to the rest of the Wolf Eyes catalogue…Burned Mind is clearly essential…and Slicer is a nice minimalist change of pace for Wolf Eyes)
Skinny Puppy - Last Rights, Rabies, Vivisect VI, Too Dark Park, Mind: The Perpetual Intercourse, Bites, The Process…(everything, really, you can’t go wrong. except for Greater Wrong of the Right which seems to be the only one you own.)
Merzbow - Tauromachine, Venereology, Merzbuddah, Merzbuta (some of my fav Merz outings)
King Crimson - In the Court of the Crimson King (essential, period)
Godflesh - In All Languages (a best of)
Fantomas - The Director’s Cut, Suspended Animation (awesome albums. Director’s Cut will be instantly enjoyabe. Suspended Animation will challenge you to no end.)
Einsturzende Nuebauten - Tabula Rasa (showcases Einsturzende’s newfound more grandiose orchestral approach, but the track Headcleaner is more hardcore than any of their old material)
Coil - Horse Rotovator, Unnatural History II (has some great soundtrack stuff including Hellraiser Theme)
download - Charlie’s Family (download doing creepy Halloween music. really campy and cool)
Big Black - Rich Man’s 8-Track Tape (a must)
Tool - Aenima
Others that weren’t on your list at all:
The Locust - Safety First Body Second EP (Ipecac) (you know who they are. they finally found a way to organize their sound into something that isn’t irritating after a few songs)
Dead Machines - Futures (freeform noise from Olson of Wolf Eyes and his clearly psychotic wife)
Pink Anvil - Halloween Party (Ipecac) (just buy it.)
Godspeed You Black Emperor! - Raise Your Skinny Fists Like Antennas to Heaven, Yanqui U.X.O (orchestral post rock)
Isis - Oceanic (Ipecac) (post rock/stoner metal)
Pelican - March Into the Sea (Ipecac) w/JK Broadrick remix (epic post rock)
Mum - Finally We Are No One (Bjork-ish glitchy)
Hair Police - Constantly Terrified (think Wolf Eyes meets Sun o))) … you will cum)
Black Eyes - Cough (avante jazz-punk)