Well, as to everybody that never gets to play:

I'm usually in that boat myself, but two of my players have recently decided they're bored with running/playing D&D and want to run a D20 Modern and Mutants and Masterminds game, respectively. Both on Wednesdays, alternating nights. So, woo hoo, I'm finally getting to PLAY in a D20 Modern game.
We'll be playing Urban Arcana, which I own and have never used, with the dark level turned up a few notches. Not that all of the "D&D In NYC" will be taken out, though: Apparently down-town there's a little gym and youth outreach center called "The House Of Kord", run by a big guy named Hanaur. Who just incidentally has the same name and description as the GM's Barbarian/Cleric/Mighty Contender of Kord PC from my RttToEE game we retired last year. A little campy, but I think he'll be able to pull it off.
What's of further interest to this thread is that I wanted to run a sort of Investigator/John Constantine style PC (the movie made me remember how much I liked the comics). But there's nothing with that dark sort of magical flavor in Urban Arcana/Modern so we sat down and hashed out a system where-by I could take some of the more flavor-appropriate spells from CoC and just learn them incidentally. Darkness, Light, Cast Out Devil, Identify Spirit, Unmask Demon, Detect Magic, etc.
This is like the fourth time we've taken either the Magic or Psychic rules from CoC and put them to use in another game. It's led me to crafting a whole new system of magic, based on the FLAVOR of CoC, some of the mechanics of Grim Tales, and some of the mechanics of Blue Rose.
--fje