BTW, Tac, where to go next. I know hits and Welcome to My Nightmare. I was thinking going back to the original band but I wanted something a little...darker.
Ironically, I really wouldn't classify very many of his albums as "dark". I mean he does have a dark, if not tongue in cheek sense of humor.
I would say that his 3 "darkest" albums are:
1. Brutal Planet (2000)
This is a heavy, almost industrial sounding album
Youtube: Wicked Young Man, Sanctuary, & Pick Up The Bones
2. Raise Your Fist And Yell (1987)
In the mid 80's, this was representative of the splatter movie genre.
Youtube: The Gail Trilogy (Chop Chop Chop, Gail, Roses On White Lace (f##king awesome tune!)), Prince Of Darkness
3. DaDa (1983)
This album is insane. It's very early 80's sounding (read: electronic effects). Songs about hidden away cannibalistic family members..
Youtube: Pass The Gun Around (Great Tune!), Former Lee Warmer
Also, don't discount investigating the original band stuff just because you have the greatest hits already. You must get Killer next!