I've always wanted to try some of the Pigtronix stuff. That delay in particular looks really wild.
I just picked up a Zvex Distortron, and I've been really pleased with it. Granted, I'm not using it with an Alembic, but it doesn't seem finicky and I'm betting it would sound fine with active electronics. It advertises itself as the sound of a non-master volume Marshall with everything on 10, but I think that sells it short. It can also get some really great mild overdrive sounds as well.