Katatonia
Porcupine Tree
Tool (Particularly Aenima and Lateralus)
Nine Inch Nails (Anything before that Year Zero crap)
O.S.I.
Wow OSI, both of their CD's are great. Kevin Moore is a genius.
In fact all that you mentioned would be on my list except for NiN. I love them but not my favorite.
Ikuinen Kaamos
Edge of Sanity
Moonsorrow
Ne Obliviscaris
Ulver