I'm running a pbp game here on the boards: Red Alert! Danger! Danger!
The group is pretty fun, and the players are getting into it.
I don't think there's too many dice to use: you roll all of them, then pick two, and one effect die. There, done. If you want to add more, you can use your "plot points" (ie: tokens), but otherwise you're just picking the best two plus an effect die.
Making new heroes is stupidly easy: just pick general themes, and assign realistic dice for the powers. It can be quick to make a generally acceptable hero. I like it.
I'm also accepting players. We're figuring out the rules (well, I'm trying to; my players are helping me out), so if you or anyone wants to (at a glacial pbp pace) give it a spin on pbp, come on by!