The Trigger Man looks pretty cool. I had never heard of it. The Delptronic drum modules look pretty great, too. Main reason I am looking at the Trigger Riot is easy polyrythmic sequences, both for triggering drums and for modulation. Looks like the Trigger Man can do a lot of the same thing.
Atlantis... basically because I'm lazy and it's a complete voice.
An alternative setup I was looking at before was the ALM Sid Guts Deluxe. I have a Sid Station that I really love, but hate the menu-diving. That would free up some room for a Function/Maths. And all of that would free up room for a Pressure Points (and some other utility modules), which is something I was wanting to add down the line.
Thanks for the suggestions. Gives me something to think about.