> Mailman is just too slow. 

This is just amazing to me, since the kernel mailing list uses
Mailman; several hundred messages/day, thousands of users.

> Majordomo is just to old.
> 
> Ezmlm is just to hard to non-techincal people to understand.
> 
> Any other choices out there?

Smartmail is based on procmail
Interestingly, the procmail list doesn't use that -- it uses mailman. 

Good luck, 
Andy